Is CVE-2011-2699 being actively exploited?

CVE-2011-2699 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2011-2699?

CVE-2011-2699 has a CVSS 3.1 base score of 7.5 (HIGH).

CVE-2011-2699

HIGH · CVSS 7.5EPSS 5.6%EU EUVD

The IPv6 implementation in the Linux kernel before 3.1 does not generate Fragment Identification values separately for each destination, which makes it easier for remote attackers to cause a denial of service (disrupted networking) by predicting these values and sending crafted packets.

Key facts

CVSS score: 7.5 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS score: 5.6% (93th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2011-2680)
Published: May 24, 2012
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2011-2680 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

linux / linux kernel
redhat / enterprise linux
redhat / enterprise mrg

Certified products that may be affected

8 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

Red Hat Enterprise Linux Kernel Crypto API Cryptographic Module v4.0 with CPACF - Red Hat®, Inc. - FIPS 140 2798 - historical
Red Hat Enterprise Linux Kernel Crypto API Cryptographic Module v4.0 - Red Hat®, Inc. - FIPS 140 2742 - historical
Red Hat Enterprise Linux Libreswan Cryptographic Module v4.0 - Red Hat®, Inc. - FIPS 140 2721 - historical
Red Hat Enterprise Linux NSS Cryptographic Module v4.0 - Red Hat®, Inc. - FIPS 140 2711 - historical
Red Hat Enterprise Linux libgcrypt Cryptographic Module v4.0 [1] and Red Hat Enterprise Linux libgcrypt Cryptographic Module v5.0 [2] - Red Hat®, Inc. - FIPS 140 2657 - historical

See all 8 in the Security Certifications Explorer.

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=87c48fa3b4630905f98268dde838ee43626a060c
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1(Mailing List, Patch, Vendor Advisory)
http://www.mandriva.com/security/advisories?name=MDVSA-2013:150(Broken Link)
http://www.openwall.com/lists/oss-security/2011/07/20/5(Mailing List, Third Party Advisory)
http://www.securitytracker.com/id?1027274(Third Party Advisory, VDB Entry)
https://bugzilla.redhat.com/show_bug.cgi?id=723429(Issue Tracking, Patch, Third Party Advisory)
https://github.com/torvalds/linux/commit/87c48fa3b4630905f98268dde838ee43626a060c(Patch, Third Party Advisory)

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

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