01 Record

CVE-2026-63274

Heap buffer overflow in PDF import stream handling

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

View raw JSON

02 Description

Heap buffer overflow in PDF import stream handling

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.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

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

2026-09-28 14:01Z1 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

CWE-125Out-of-bounds ReadBase
CWE-787Out-of-bounds WriteBase
CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')Base

Data version

5.2

Document digest

d2bce16f1914c30a0ff9e6a2e31522d821ac62285a8219f316fc48c94104c005

05 Affected products

VendorProductVersionsPlatforms

The Document FoundationLibreOffice26.2 to < < 26.2.5—

06 References

www.libreoffice.orghttps://www.libreoffice.org/about-us/security/advisories/cve-2026-63274

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).

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).

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.

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.

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.