01 Record
CVE-2026-63276
Stack buffer overflow in CFF to Type 1 font conversion
MediumPUBLISHEDCNA: Document Fdn.
CNA base score5.4 CVSS v4.0CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:P
02 Description
Stack buffer overflow in CFF to Type 1 font conversion
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.19% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 9.2% of scored records. A rank, not a probability.
- NVD base score
- 5.4 (CVSS v4.0), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- NVD analysis status
- Deferred. NVD last modified this record on 2026-09-22.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-09-22 11:10Z1 MO AGO
- Last updated
- 2026-09-22 12:21Z1 MO AGO
- Reserved
- 2026-07-16
- Assigning CNA
- Document Fdn.
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.4)
- CNA CVSS vector
- CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:P
- Weaknesses
- Data version
- 5.2
- Document digest
- 24893b205fc391f561cd01882774c4365dbfb3e93dd5deeaae0edf3981cf3cd8
05 Affected products
VendorProductVersionsPlatforms
06 References
- www.libreoffice.orghttps://www.libreoffice.org/about-us/security/advisories/cve-2026-63276
07 Fixed in
AlmaLinux 8
- autocorr-af Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-bg Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-ca Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-cs Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-da Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-de Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-el Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-en Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-es Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-fa Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-fi Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-fr Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-ga Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-hr Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-hu Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-is Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-it Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-ja Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-ko Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-lb Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-lt Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-mn Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-nl Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-pl Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-pt Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-ro Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-ru Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-sk Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-sl Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-sr Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-sv Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-tr Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-vi Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-zh Fixed in 1:7.1.8.1-3.el8_10.alma.1
- flute Fixed in 1.3.0-19.OOo31.el8_10
- libbase Fixed in 1.1.3-21.el8_10
- libfonts Fixed in 1.1.3-23.el8_10
- libformula Fixed in 1.1.3-20.el8_10
- liblayout Fixed in 0.2.10-19.el8_10
- libloader Fixed in 1.1.3-19.el8_10
144 further packages in AlmaLinux 8 not shown (first 40 listed).
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 9
- autocorr-af Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-bg Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-ca Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-cs Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-da Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-de Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-dsb Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-el Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-en Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-es Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-fa Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-fi Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-fr Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-ga Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-hr Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-hsb Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-hu Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-is Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-it Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-ja Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-ko Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-lb Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-lt Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-mn Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-nl Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-pl Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-pt Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-ro Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-ru Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-sk Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-sl Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-sr Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-sv Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-tr Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-vi Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-vro Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-zh Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- libreoffice Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- libreoffice-base Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- libreoffice-calc Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
139 further packages in AlmaLinux 9 not shown (first 40 listed).
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- autocorr-af Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-bg Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-ca Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-cs Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-da Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-de Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-el Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-en Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-es Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-fa Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-fi Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-fr Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-ga Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-hr Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-hu Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-is Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-it Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-ja Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-ko Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-lb Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-lt Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-mn Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-nl Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-pl Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-pt Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-ro Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-ru Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-sk Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-sl Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-sr Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-sv Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-tr Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-vi Fixed in 1:7.1.8.1-3.el8_10.alma.1
- autocorr-zh Fixed in 1:7.1.8.1-3.el8_10.alma.1
- flute Fixed in 1.3.0-19.OOo31.el8_10
- libbase Fixed in 1.1.3-21.el8_10
- libfonts Fixed in 1.1.3-23.el8_10
- libformula Fixed in 1.1.3-20.el8_10
- liblayout Fixed in 0.2.10-19.el8_10
- libloader Fixed in 1.1.3-19.el8_10
144 further packages in CloudLinux 8 not shown (first 40 listed).
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 9
- autocorr-af Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-bg Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-ca Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-cs Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-da Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-de Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-dsb Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-el Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-en Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-es Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-fa Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-fi Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-fr Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-ga Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-hr Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-hsb Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-hu Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-is Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-it Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-ja Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-ko Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-lb Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-lt Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-mn Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-nl Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-pl Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-pt Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-ro Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-ru Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-sk Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-sl Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-sr Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-sv Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-tr Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-vi Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-vro Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- autocorr-zh Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- libreoffice Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- libreoffice-base Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
- libreoffice-calc Fixed in 1:7.1.8.1-15.el9_8.3.alma.1
139 further packages in CloudLinux 9 not shown (first 40 listed).
Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- libreoffice No fix yet
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- libreoffice Fixed in 4:25.2.3-2+deb13u7
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- libreoffice Fixed in 4:26.2.5.2-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- libreoffice No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- libreoffice Fixed in 1:7.3.7-0ubuntu0.22.04.13
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- libreoffice Fixed in 4:24.2.7-0ubuntu0.24.04.7
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.04 LTS
- libreoffice Fixed in 4:26.2.6.3-0ubuntu0.26.04.2
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.