CVE-2008-5911
Multiple buffer overflows in RealNetworks Helix Server and Helix Mobile Server 11.x before 11.1.8 and 12.x before 12.0.1 allow remote…
- 10.0HighCVSS base score
- 6.2%Exploitation in 30 daysEPSS · top 6.4% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Multiple buffer overflows in RealNetworks Helix Server and Helix Mobile Server 11.x before 11.1.8 and 12.x before 12.0.1 allow remote attackers to (1) cause a denial of service via three crafted RTSP SETUP commands, or execute arbitrary code via (2) an NTLM authentication request with malformed base64-encoded data, (3) an RTSP DESCRIBE command, or (4) a DataConvertBuffer request.
Timeline
ID reserved
By mitre
Published
- 16 years later
· 16 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High10.0 | AV:N/AC:L/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 6.2% · top 6.4% of all CVEs (10 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 10.0.
Affected products
n/a
- affected n/a
References
7
- 1021500 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 1021498 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 33360 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://docs.real.com/docs/security/SecurityUpdate121508HS.pdf (opens in a new tab)x_refsource_CONFIRMx_transferred
- ADV-2008-3521 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 1021501 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 1021499 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2008-5881 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2008-5911)Record last updated .