FreeRDP 3.0.0 before 3.32.0 Unauthenticated Memory Exhaustion via NLA Frame Parser
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 2 fixed, 4 without a fix
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-400.
Summary
FreeRDP from 3.0.0 before 3.32.0 contains an uncontrolled resource consumption vulnerability in parse_nla_mode_pdu that allows unauthenticated attackers to exhaust server memory. Attackers can complete TLS and stream bytes not beginning with the DER SEQUENCE tag 0x30, causing unbounded receive buffer growth before NLA authentication.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA FreeRDP (FreeRDP) Fixed in 3.32.0
Red Hat 1 advisory
- RHSA-2026:94514 Released 2026-11-03 · Red Hat rating Importantfreerdp security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream (v. 10) freerdp-2:3.32.2-1.el10_2, freerdp-libs-2:3.32.2-1.el10_2, libwinpr-2:3.32.2-1.el10_2
- Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) freerdp-devel-2:3.32.2-1.el10_2, freerdp-server-2:3.32.2-1.el10_2, libwinpr-devel-2:3.32.2-1.el10_2
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
FreeRDP 3.32.0
10 records Highest priority Priority HIGH 4 HIGH, 4 MEDIUM, 2 LOW
Other records, highest priority first
- TI-2026-75127 Integer overflow in FreeRDP audin Apple backends causes heap overflowPriority HIGH 73
- TI-2026-75128 Heap buffer overflow in FreeRDP persistent cache v2 parserPriority HIGH 66
- TI-2026-75126 Heap buffer overflow in FreeRDP persistent cache file parsingPriority HIGH 66
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix yet |
| Red Hat Enterprise Linux 8 | Affected | No fix yet |
| Red Hat Enterprise Linux 9 | Affected | No fix yet |
| Red Hat Enterprise Linux AppStream (v. 10) | Fixed | RHSA-2026:94514 |
| Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) | Fixed | RHSA-2026:94514 |
Timeline
- 2026-10-16 Threatist record created from CVE-2026-111378
- 2026-10-16 Priority changed: MEDIUM → LOW
- 2026-10-16 Affected versions changed · Red Hat
- 2026-10-16 CVSS score added · Red Hat
- 2026-10-16 CISA SSVC decision points changed
- 2026-10-16 Priority changed: LOW → HIGH
- 2026-11-03 Fix available: RHSA-2026:94514 · Red Hat
- 2026-11-03 Fix available: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) · Red Hat
References
More Freerdp vulnerabilities
- TI-2026-85092 Use-after-free in FreeRDP rdpgfx channel close handling CVSS 4.0CRITICAL 9.3
- TI-2026-85091 Out-of-bounds write in FreeRDP proxy via bitmap cache v2 capability CVSS 4.0CRITICAL 9.3
- TI-2026-24435 FreeRDP has a `size_t` underflow in ADPCM decoder leads to heap-buffer-overflow write CVSS 3.1CRITICAL 9.8
- TI-2023-21373 Out-Of-Bounds Write in FreeRDP CVSS 3.1CRITICAL 9.8
- TI-2022-08692 Server side NTLM does not properly check parameters in FreeRDP CVSS 3.1CRITICAL 9.1
- TI-2023-21374 Out-Of-Bounds Read in FreeRDP CVSS 3.1CRITICAL 9.1
Sources
- CVE-2026-111378 · CVE Program
- CVE-2026-111378 · NVD
- FIRST EPSS
- CVE-2026-111378 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences