Is CVE-2011-4315 being actively exploited?

CVE-2011-4315 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2011-4315?

CVE-2011-4315 has a CVSS 2.0 base score of 6.8 (MEDIUM).

CVE-2011-4315

MEDIUM · CVSS 6.8EPSS 6.0%EU EUVD

Heap-based buffer overflow in compression-pointer processing in core/ngx_resolver.c in nginx before 1.0.10 allows remote resolvers to cause a denial of service (daemon crash) or possibly have unspecified other impact via a long response.

Key facts

CVSS score: 6.8 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness (CWE): CWE-787
EPSS score: 6.0% (93th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2011-4249)
Published: December 8, 2011
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2011-4249 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

f5 / nginx
fedoraproject / fedora
suse / studio
suse / studio onsite
suse / webyast

References

http://lists.fedoraproject.org/pipermail/package-announce/2011-December/070569.html(Third Party Advisory)
http://lists.opensuse.org/opensuse-security-announce/2011-12/msg00005.html(Mailing List, Third Party Advisory)
http://openwall.com/lists/oss-security/2011/11/17/10(Mailing List, Patch, Third Party Advisory)
http://openwall.com/lists/oss-security/2011/11/17/8(Mailing List, Patch, Third Party Advisory)
http://secunia.com/advisories/47097(Third Party Advisory)
http://secunia.com/advisories/48577(Third Party Advisory)
http://security.gentoo.org/glsa/glsa-201203-22.xml(Third Party Advisory)
http://trac.nginx.org/nginx/changeset/4268/nginx(Issue Tracking, Patch, Vendor Advisory)
http://www.nginx.org/en/CHANGES-1.0(Release Notes, Vendor Advisory)
http://www.securityfocus.com/bid/50710(Third Party Advisory, VDB Entry)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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