FreeRDP is a free implementation of the Remote Desktop Protocol. FreeRDP based clients that use a version of FreeRDP prior to 3.5.0 or 2.11.6 and have connections to servers using the NSC codec are vulnerable to integer underflow. Versions 3.5.0 and 2.11.6 patch the issue. As a workaround, do not use the NSC codec (e.g. use -nsc).
CVE-2024-32040
This high-severity CVE scores 8.1 under NVD CVSS v3. EPSS exploit probability: 1.9%, top 22% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 8.1
- EG Score
- 8.1(medium)
- EG Risk
- 37(Track)EG Risk 37/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity81% × 45%Exploitation2% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 2%
- EPSS %ILE
- 79%
- KEV
- Not listed
Published
April 22, 2024
Last Modified
November 3, 2025
Advisory Details (8)
Auto-updated Sep 19, 20262.11.6
Patch available: FreeRDP/FreeRDP 2.11.6
https://github.com/FreeRDP/FreeRDP/releases/tag/2.11.6Fixes
Fix merged in FreeRDP/FreeRDP PR #10077 on 2024-04-16 — awaiting tagged release
https://github.com/FreeRDP/FreeRDP/pull/10077[SECURITY] Fedora 39 Update: freerdp-2.11.7-1.fc39 - package-announce - Fedora mailing-lists
https://lists.fedoraproject.org/archives/list/[email protected]/message/ZKI4UISUXYNBPN4K6TIQKDRTIJ6CDCKJ/[SECURITY] Fedora 38 Update: freerdp-2.11.7-1.fc38 - package-announce - Fedora mailing-lists
https://lists.fedoraproject.org/archives/list/[email protected]/message/PX3U6YPZQ7PEJBVKSBUOLWVH7DHROHY5/[SECURITY] Fedora 40 Update: freerdp-3.5.1-1.fc40 - package-announce - Fedora mailing-lists
https://lists.fedoraproject.org/archives/list/[email protected]/message/7SIS6NUNLUBOV4CPCSWKDE6T6C2W3WTR/[SECURITY] Fedora 40 Update: freerdp2-2.11.7-1.fc40 - package-announce - Fedora mailing-lists
https://lists.fedoraproject.org/archives/list/[email protected]/message/5JL476WVJSIE7SBUKVJRVA6A52V2HOLZ/integer underflow in nsc_rle_decode · Advisory · FreeRDP/FreeRDP · GitHub
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-23c5-cp23-h2h5Release 3.5.0 (FreeRDP/FreeRDP)
Patch available: FreeRDP/FreeRDP 3.5.0
https://github.com/FreeRDP/FreeRDP/releases/tag/3.5.0Patch Availability(3)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | winpr-utils (2.11.5+dfsg1-1ubuntu0.1~esm1) @ noble | 2026-05-24 | ubuntu |
| ubuntu | winpr-utils (2.10.0+dfsg1-1.1ubuntu1.2) @ mantic | 2026-05-24 | ubuntu |
| redhat | freerdp-2:2.11.7-1.el9 | 2024-11-12 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(2 across 2 ecosystems)
Debian:11(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| freerdp2 | 2.3.0+dfsg1-2, 2.3.0+dfsg1-2+deb11u1 | 2.3.0+dfsg1-2+deb11u2 | — |
Debian:12(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| freerdp2 | 2.10.0+dfsg1-1 ... 2.11.7+dfsg1-5 (11 versions) | 2.11.7+dfsg1-6~deb12u1 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(3)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Data Freshness Timeline
(refreshed 6× in last 7d / 29× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 172 total refreshes for this CVE.
- 2026-09-19 15:40 UTCEPSS rescore
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Frequently asked(5)
What is CVE-2024-32040?
When was CVE-2024-32040 disclosed?
Is CVE-2024-32040 actively exploited?
What is the CVSS score of CVE-2024-32040?
How do I remediate CVE-2024-32040?
Dependency Blast Radius
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