CVE-2007-2931: microsoft msn_messenger Improper Input Validation
Vulnerability summary
CVE-2007-2931 is a high (CVSS 9.3) Improper Input Validation vulnerability in microsoft msn_messenger. EPSS estimates a 55.45% chance of exploitation in the next 30 days, higher than 99% of scored vulnerabilities. 4 public exploits are recorded.
Advisory lineage
Upstream 0 · Downstream 0 · Duplicates 1Timeline
- 31-08-2007PublishedVulnerability first disclosed.
- 07-08-2024Last modifiedVulnerability information updated.
Description
Heap-based buffer overflow in Microsoft MSN Messenger 6.2, 7.0, and 7.5, and Live Messenger 8.0 allows user-assisted remote attackers to execute arbitrary code via unspecified vectors involving video conversation handling in Web Cam and video chat sessions.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
55.45%
Chance of exploitation in the next 30 days
Percentile
99%
Versus all other CVEs
30-day change
0.00 pp
From 55.45% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
4 foundExploit Reference (securityfocus.com)
Maturity: unknown
Exploit Reference (team509.com)
Maturity: unknown
Microsoft MSN Messenger 7.x/8.0? - Video Remote Heap Overflow
Maturity: weaponized
Weaknesses
CWE · root cause- CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
- CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
Affected systems
Microsoft2 products
- msn_messenger6.2 | 7.0 | 7.5
- windows_live_messenger8.0
1 vendor · 2 products
References
11 links- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2063VDB EntrySignatureX Refsource OVAL
docs.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-054Vendor AdvisoryX Refsource MS- www.us-cert.gov/cas/techalerts/TA07-254A.htmlThird Party AdvisoryX Refsource CERTUS Government Resource