CVE-2009-4257
Heap-based buffer overflow in datatype/smil/common/smlpkt.cpp in smlrender.dll in RealNetworks RealPlayer 10, RealPlayer 10.5 6.0.12.1040…
- 9.3HighCVSS base score
- 8.5%Exploitation in 30 daysEPSS · top 4.9% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Heap-based buffer overflow in datatype/smil/common/smlpkt.cpp in smlrender.dll in RealNetworks RealPlayer 10, RealPlayer 10.5 6.0.12.1040 through 6.0.12.1741, RealPlayer 11 11.0.0 through 11.0.4, RealPlayer Enterprise, Mac RealPlayer 10 and 10.1, Linux RealPlayer 10 and 11.0.0, and Helix Player 10.x and 11.0.0 allows remote attackers to execute arbitrary code via an SMIL file with crafted string lengths.
Timeline
ID reserved
By mitre
- 47 days later
· 47 days later
Published
- 15 years later
· 15 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 | High9.3 | AV:N/AC:M/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 8.5% · top 4.9% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 9.3.
Affected products
n/a
- affected n/a
References
References14
- RHSA-2010:0094 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 20100121 ZDI-10-007: RealNetworks RealPlayer SMIL getAtom Remote Code Execution Vulnerability (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- ADV-2010-0178 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- [datatype-cvs] 20080916 smil/common smlpkt.cpp,1.11,1.12 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- realnetworks-realplayer-smil-bo(55798) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 1023489 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- http://service.real.com/realplayer/security/01192010_player/en/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=561309 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 38450 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- https://helixcommunity.org/viewcvs/datatype/smil/common/smlpkt.cpp?view=log#rev1.12 (opens in a new tab)x_refsource_CONFIRMx_transferred
- oval:org.mitre.oval:def:11110 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 38218 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://www.zerodayinitiative.com/advisories/ZDI-10-007/ (opens in a new tab)x_refsource_MISCx_transferred
- 37880 (opens in a new tab)vdb-entryx_refsource_BIDx_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-2009-4226 (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-2009-4257)Record last updated .