synced 4 MIN AGO
01 Record

CVE-2026-91954

FreeRDP before 3.31.0 NULL Pointer Dereference via NSCodec

HighPUBLISHEDCNA: VulnCheck
CNA base score7.1 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
View raw JSON

02 Description

FreeRDP before 3.31.0 NULL Pointer Dereference via NSCodec

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.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • 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
0.39% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 32.9% of scored records. A rank, not a probability.
NVD base score
7.1 (CVSS v4.0), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/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
Analyzed. NVD last modified this record on 2026-09-24.
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
2026-09-15 15:18Z1 MO AGO
Last updated
2026-09-17 19:28Z1 MO AGO
Reserved
2026-09-15
Assigning CNA
VulnCheck
Record state
PUBLISHED
Severity
High (CVSS 7.1)
CNA CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Weaknesses
  • CWE-476NULL Pointer DereferenceBase
Data version
5.2
Document digest
c14974dc1d35c9b3b21054f2690c471dd20f99458517c3e85542d4c6e5748427

05 Affected products

VendorProductVersionsPlatforms
FreeRDPFreeRDP0 to < 3.31.0—

06 References

07 Fixed in

AlmaLinux 8

  • freerdp
    Fixed in 2:2.11.7-14.el8_10
  • freerdp-devel
    Fixed in 2:2.11.7-14.el8_10
  • freerdp-libs
    Fixed in 2:2.11.7-14.el8_10
  • libwinpr
    Fixed in 2:2.11.7-14.el8_10
  • libwinpr-devel
    Fixed in 2:2.11.7-14.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 in 2:2.11.7-7.el9_8.8
  • freerdp-devel
    Fixed in 2:2.11.7-7.el9_8.8
  • freerdp-libs
    Fixed in 2:2.11.7-7.el9_8.8
  • libwinpr
    Fixed in 2:2.11.7-7.el9_8.8
  • libwinpr-devel
    Fixed in 2:2.11.7-7.el9_8.8

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 2:3.10.3-12.el10_2.14
  • freerdp-devel
    Fixed in 2:3.10.3-12.el10_2.14
  • freerdp-libs
    Fixed in 2:3.10.3-12.el10_2.14
  • freerdp-server
    Fixed in 2:3.10.3-12.el10_2.14
  • libwinpr
    Fixed in 2:3.10.3-12.el10_2.14
  • libwinpr-devel
    Fixed in 2:3.10.3-12.el10_2.14

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 2:2.11.7-14.el8_10
  • freerdp-devel
    Fixed in 2:2.11.7-14.el8_10
  • freerdp-libs
    Fixed in 2:2.11.7-14.el8_10
  • libwinpr
    Fixed in 2:2.11.7-14.el8_10
  • libwinpr-devel
    Fixed in 2:2.11.7-14.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 in 2:2.11.7-7.el9_8.8
  • freerdp-devel
    Fixed in 2:2.11.7-7.el9_8.8
  • freerdp-libs
    Fixed in 2:2.11.7-7.el9_8.8
  • libwinpr
    Fixed in 2:2.11.7-7.el9_8.8
  • libwinpr-devel
    Fixed in 2:2.11.7-7.el9_8.8

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 2:3.10.3-12.el10_2.14
  • freerdp-devel
    Fixed in 2:3.10.3-12.el10_2.14
  • freerdp-libs
    Fixed in 2:3.10.3-12.el10_2.14
  • freerdp-server
    Fixed in 2:3.10.3-12.el10_2.14
  • libwinpr
    Fixed in 2:3.10.3-12.el10_2.14
  • libwinpr-devel
    Fixed in 2:3.10.3-12.el10_2.14

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
    No fix yet

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • freerdp3
    Fixed in 3.31.0+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 3.31.0+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 26.04 LTS

  • freerdp3
    Fixed in 3.31.0+dfsg-0ubuntu0.26.04.1

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.