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CVE-2009-2730
libgnutls in GnuTLS before 2.8.2 does not properly handle a '\0' character in a domain name in the subject's (1) Common Name (CN) or (2)…
High7.5EPSS 2.2%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
libgnutls in GnuTLS before 2.8.2 does not properly handle a '\0' character in a domain name in the subject's (1) Common Name (CN) or (2) Subject Alternative Name (SAN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 2.2% · top 18% of all CVEs (6 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
n/a
- affected n/a
References (13)
- oval:org.mitre.oval:def:8409 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 1022777 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- http://www.vmware.com/security/advisories/VMSA-2009-0016.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20090814 GnuTLS CVE-2009-2730 Patches (Was Re: GnuTLS 2.8.2) (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- RHSA-2009:1232 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- SUSE-SR:2009:015 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 36496 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- oval:org.mitre.oval:def:10778 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 36266 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 20091120 VMSA-2009-0016 VMware vCenter and ESX update release and vMA patch release address multiple security issue in third party components (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- gnutls-cn-san-security-bypass(52404) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- RHSA-2010:0095 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- http://article.gmane.org/gmane.network.gnutls.general/1733 (opens in a new tab)x_refsource_CONFIRMx_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://trackcve.app/cve/CVE-2009-2730)Record last updated .