Error handling in the SSH protocol in (1) SSH Tectia Client and Server and Connector 4.0 through 4.4.11, 5.0 through 5.2.4, and 5.3…

Description

Error handling in the SSH protocol in (1) SSH Tectia Client and Server and Connector 4.0 through 4.4.11, 5.0 through 5.2.4, and 5.3 through 5.3.8; Client and Server and ConnectSecure 6.0 through 6.0.4; Server for Linux on IBM System z 6.0.4; Server for IBM z/OS 5.5.1 and earlier, 6.0.0, and 6.0.1; and Client 4.0-J through 4.3.3-J and 4.0-K through 4.3.10-K; and (2) OpenSSH 4.7p1 and possibly other versions, when using a block cipher algorithm in Cipher Block Chaining (CBC) mode, makes it easier for remote attackers to recover certain plaintext data from an arbitrary block of ciphertext in an SSH session via unknown vectors.

Scores

EPSS (exploitation in 30 days)

18.6% · top 2.7% of all CVEs (3 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 3.7.

Weakness

• n/a
• CWE-329 Generation of Predictable IV with CBC Mode (opens in a new tab)All about CWE-329 and its CVEs
• CWE-200 (opens in a new tab)All about CWE-200 and its CVEs

Affected products

• n/a

  • affected n/a

References (40)

• http://openssh.org/txt/cbc.adv (opens in a new tab)x_refsource_CONFIRMx_transferred
• 247186 (opens in a new tab)vendor-advisoryx_refsource_SUNALERTx_transferred
• 32319 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• 33121 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05157667 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 49872 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
• 33308 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• RHSA-2009:1287 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• http://www.cpni.gov.uk/Docs/Vulnerability_Advisory_SSH.txt (opens in a new tab)x_refsource_MISCx_transferred
• 1021382 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
• https://kc.mcafee.com/corporate/index?page=content&id=SB10163 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 50036 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
• 32833 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 36558 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 50035 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
• http://www.ssh.com/company/news/article/953/ (opens in a new tab)x_refsource_CONFIRMx_transferred
• 1021235 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
• 34857 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• http://support.avaya.com/elmodocs2/security/ASA-2008-503.htm (opens in a new tab)x_refsource_MISCx_transferred
• http://support.attachmate.com/techdocs/2398.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• http://www.rtpro.yamaha.co.jp/RT/FAQ/Security/CPNI957037.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• ADV-2008-3173 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• 20081123 Revised: OpenSSH security advisory: cbc.adv (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• openssh-sshtectia-cbc-info-disclosure(46620) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
• 32740 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• ADV-2009-1135 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• 32760 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• ADV-2009-3184 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 1021236 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
• https://kc.mcafee.com/corporate/index?page=content&id=SB10106 (opens in a new tab)x_refsource_CONFIRMx_transferred
• HPSBMA02447 (opens in a new tab)vendor-advisoryx_refsource_HPx_transferred
• http://isc.sans.org/diary.html?storyid=5366 (opens in a new tab)x_refsource_MISCx_transferred
• APPLE-SA-2009-11-09-1 (opens in a new tab)vendor-advisoryx_refsource_APPLEx_transferred
• ADV-2008-3409 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• ADV-2008-3172 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• oval:org.mitre.oval:def:11279 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
• 20081121 OpenSSH security advisory: cbc.adv (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• http://support.apple.com/kb/HT3937 (opens in a new tab)x_refsource_CONFIRMx_transferred
• VU#958563 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_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

[![CVE-2008-5161](https://trackcve.app/badge/CVE-2008-5161.svg)](https://trackcve.app/cve/CVE-2008-5161)

Record last updated 28 May 2026, 18:11 UTC.