CVE-2026-31885: freerdp Out-of-bounds Read
CVSS: 9.4v3.1CriticalAnalyzed
AliasesUBUNTU-CVE-2026-31885DEBIAN-CVE-2026-31885
Published 13-03-2026Last modified 16-03-2026
Vulnerability summary
CVE-2026-31885 is a critical (CVSS 9.4) Out-of-bounds Read vulnerability in freerdp. EPSS estimates a 0.27% chance of exploitation in the next 30 days, higher than 18.5% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
9.4/10
010
Critical · v3.1 (NVD)EPSS score
0.27%
0%100%
Low · +0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Advisory lineage
Upstream 0 · Downstream 23 · Related 8MGASA-2026-0086OPENSUSE-SU-2026:10408-1OPENSUSE-SU-2026:10459-1RHSA-2026:16014RHSA-2026:16019RHSA-2026:16482RHSA-2026:16483RHSA-2026:16485RHSA-2026:16777RHSA-2026:16814RHSA-2026:16865RHSA-2026:16866RHSA-2026:19142RHSA-2026:19358RHSA-2026:19811RHSA-2026:20546RHSA-2026:20605SUSE-SU-2026:1129-1SUSE-SU-2026:1160-1SUSE-SU-2026:1164-1SUSE-SU-2026:1165-1SUSE-SU-2026:1398-1USN-8561-1
Timeline
- 13-03-2026PublishedVulnerability first disclosed.
- 16-03-2026Last modifiedVulnerability information updated.
Description
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.24.0, there is an out-of-bounds read in MS-ADPCM and IMA-ADPCM decoders due to unchecked predictor and step_index values from input data. This vulnerability is fixed in 3.24.0.
CVSS metrics
4 scores · 4 sources · 1 versionCritical 9.4Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:HSources4 sources · 6.5–9.4
- CVE.orgCNA6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:NDiffers
- OSV · UbuntuEcosystem advisory · calculated9.4CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H
- OSV · DebianEcosystem advisory · calculated9.4CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H
EPSS trend
Probability
0.27%
Chance of exploitation in the next 30 days
Percentile
19%
Versus all other CVEs
30-day change
+0.01 pp
From 0.26% on 20-09-2026
20-09-202620-10-2026
EPSS score0.27%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundFreerdp
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Ubuntu3 products
- freerdpAll versions (No fix recorded)
- freerdp2All versions (No fix recorded)
- freerdp3< 3.30.0+dfsg-0ubuntu0.24.04.1 | All versions (No fix recorded)
Debian2 products
- freerdp2All versions (No fix recorded)
- freerdp3< 3.15.0+dfsg-2.1+deb13u2 | < 3.24.0+dfsg-1
Freerdp1 product
- freerdp< 3.24.0
3 vendors · 6 products
References
6 links- github.com/FreeRDP/FreeRDP/security/advisories/GHSA-h23r-3988-3wf3X Refsource CONFIRMREPORTExploitPatchVendor Advisory
- github.com/FreeRDP/FreeRDP/commit/16df2300e1e3f5a51f68fb1626429e58b531b7c8X Refsource MISCREPORTPatch
