Back
CVE-2004-1008
Integer signedness error in the ssh2_rdpkt function in PuTTY before 0.56 allows remote attackers to execute arbitrary code via a…
High10.0EPSS 7.4%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
Integer signedness error in the ssh2_rdpkt function in PuTTY before 0.56 allows remote attackers to execute arbitrary code via a SSH2_MSG_DEBUG packet with a modified stringlen parameter, which leads to a buffer overflow.
Timeline
ID reserved
By mitre
- 28 days later
· 28 days later
Published
- 20 years later
· 20 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)
- 7.4% · top 5.6% of all CVEs (8 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 10.0.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (11)
- http://www-1.ibm.com/support/docview.wss?uid=ssg1S1002414 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 13012 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 20041027 PuTTY SSH2_MSG_DEBUG Buffer Overflow Vulnerability (opens in a new tab)third-party-advisoryx_refsource_IDEFENSEx_transferred
- http://www.chiark.greenend.org.uk/~sgtatham/putty/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- putty-ssh2msgdebug-bo(17886) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 12987 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 11549 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 20041027 PuTTY SSH client vulnerability (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- http://www-1.ibm.com/support/docview.wss?uid=ssg1S1002416 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 17214 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- GLSA-200410-29 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_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)
- 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-2004-1008)Record last updated .