CVE-2025-29966: microsoft remote_desktop Heap-based Buffer Overflow
CVSS: 8.8v3.1HighAnalyzed
Published 13-05-2025Last modified 13-02-2026
Vulnerability summary
CVE-2025-29966 is a high (CVSS 8.8) Heap-based Buffer Overflow vulnerability in microsoft remote_desktop. EPSS estimates a 1.43% chance of exploitation in the next 30 days, higher than 72.5% of scored vulnerabilities.
CVSS score
8.8/10
010
High · v3.1 (CVE.org)EPSS score
1.43%
0%100%
Low · +0.06 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 13-05-2025PublishedVulnerability first disclosed.
- 13-02-2026Last modifiedVulnerability information updated.
Description
Heap-based buffer overflow in Windows Remote Desktop allows an unauthorized attacker to execute code over a network.
CVSS metrics
2 scores · 2 sources · 1 versionHigh 8.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:CSourcesAll 2 agree
- NVDNIST8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
1.43%
Chance of exploitation in the next 30 days
Percentile
73%
Versus all other CVEs
30-day change
+0.06 pp
From 1.36% on 20-09-2026
20-09-202620-10-2026
EPSS score1.43%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-122Heap-based Buffer OverflowA heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
- CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.
Affected systems
Microsoft37 products
- remote_desktop< 1.2.6228.0
- remote desktop client for windows desktop≥ 1.2.0.0, < 1.2.6228.0
- windows_10_1507< 10.0.10240.21014
- windows_10_1607< 10.0.14393.8066
- windows_10_1809< 10.0.17763.7314
1 vendor · 37 products
