CVE-2026-31884
FreeRDP has a division-by-zero in ADPCM decoders when `nBlockAlign` is 0
02 Description
FreeRDP has a division-by-zero in ADPCM decoders when `nBlockAlign` is 0
03 Exploitation and scoring
- Exploitation
- Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
- SSVC decision
- ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.31% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 24.1% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-06-17.
- 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
- 2026-03-13 17:36Z7 MO AGO
- Last updated
- 2026-03-16 15:33Z7 MO AGO
- Reserved
- 2026-03-09
- Assigning CNA
- GitHub_M
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 6.5)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-369Divide By ZeroBase
- Data version
- 5.2
- Document digest
- af3fec7c66945d468fe81e772c43c4762da0ea815a123635f6b816a755d4c8b1
05 Affected products
06 References
07 Fixed in
AlmaLinux 8
- freerdp Fixed in 2:2.11.7-9.el8_10
- freerdp-devel Fixed in 2:2.11.7-9.el8_10
- freerdp-libs Fixed in 2:2.11.7-9.el8_10
- libwinpr Fixed in 2:2.11.7-9.el8_10
- libwinpr-devel Fixed in 2:2.11.7-9.el8_10
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 9
- freerdp Fixed
A version is affected if any line below covers it.
- Affected before 2:2.11.7-1.el9_7.7
- Affected before 2:2.11.7-7.el9_8.3
- freerdp-devel Fixed
A version is affected if any line below covers it.
- Affected before 2:2.11.7-1.el9_7.7
- Affected before 2:2.11.7-7.el9_8.3
- freerdp-libs Fixed
A version is affected if any line below covers it.
- Affected before 2:2.11.7-1.el9_7.7
- Affected before 2:2.11.7-7.el9_8.3
- libwinpr Fixed
A version is affected if any line below covers it.
- Affected before 2:2.11.7-1.el9_7.7
- Affected before 2:2.11.7-7.el9_8.3
- libwinpr-devel Fixed
A version is affected if any line below covers it.
- Affected before 2:2.11.7-1.el9_7.7
- Affected before 2:2.11.7-7.el9_8.3
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 10
- freerdp Fixed in 2:3.10.3-5.el10_1.8
- freerdp-devel Fixed in 2:3.10.3-5.el10_1.8
- freerdp-libs Fixed in 2:3.10.3-5.el10_1.8
- freerdp-server Fixed in 2:3.10.3-5.el10_1.8
- libwinpr Fixed in 2:3.10.3-5.el10_1.8
- libwinpr-devel Fixed in 2:3.10.3-5.el10_1.8
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- freerdp Fixed in 2:2.11.7-9.el8_10
- freerdp-devel Fixed in 2:2.11.7-9.el8_10
- freerdp-libs Fixed in 2:2.11.7-9.el8_10
- libwinpr Fixed in 2:2.11.7-9.el8_10
- libwinpr-devel Fixed in 2:2.11.7-9.el8_10
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
- freerdp Fixed
A version is affected if any line below covers it.
- Affected before 2:2.11.7-1.el9_7.7
- Affected before 2:2.11.7-7.el9_8.3
- freerdp-devel Fixed
A version is affected if any line below covers it.
- Affected before 2:2.11.7-1.el9_7.7
- Affected before 2:2.11.7-7.el9_8.3
- freerdp-libs Fixed
A version is affected if any line below covers it.
- Affected before 2:2.11.7-1.el9_7.7
- Affected before 2:2.11.7-7.el9_8.3
- libwinpr Fixed
A version is affected if any line below covers it.
- Affected before 2:2.11.7-1.el9_7.7
- Affected before 2:2.11.7-7.el9_8.3
- libwinpr-devel Fixed
A version is affected if any line below covers it.
- Affected before 2:2.11.7-1.el9_7.7
- Affected before 2:2.11.7-7.el9_8.3
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.
CloudLinux 10
- freerdp Fixed in 2:3.10.3-5.el10_1.8
- freerdp-devel Fixed in 2:3.10.3-5.el10_1.8
- freerdp-libs Fixed in 2:3.10.3-5.el10_1.8
- freerdp-server Fixed in 2:3.10.3-5.el10_1.8
- libwinpr Fixed in 2:3.10.3-5.el10_1.8
- libwinpr-devel Fixed in 2:3.10.3-5.el10_1.8
Derived from AlmaLinux 10. Partial coverage: only packages taken from AlmaLinux 10 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
- freerdp2 No fix yet
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- freerdp3 Fixed in 3.15.0+dfsg-2.1+deb13u2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- freerdp3 Fixed in 3.24.0+dfsg-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- freerdp No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- freerdp 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
- freerdp2 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- freerdp3 Fixed in 3.30.0+dfsg-0ubuntu0.24.04.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 25.10
- freerdp3 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 18.04 LTS
- freerdp2 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 20.04 LTS
- freerdp2 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 24.04 LTS
- freerdp2 No fix yet
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.