Is CVE-2009-2692 being actively exploited?

CVE-2009-2692 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2009-2692?

CVE-2009-2692 has a CVSS 3.1 base score of 7.8 (HIGH).

CVE-2009-2692

HIGH · CVSS 7.8EPSS 14.6%EU EUVD

The Linux kernel 2.6.0 through 2.6.30.4, and 2.4.4 through 2.4.37.4, does not initialize all function pointers for socket operations in proto_ops structures, which allows local users to trigger a NULL pointer dereference and gain privileges by using mmap to map page zero, placing arbitrary code on this page, and then invoking an unavailable operation, as demonstrated by the sendpage operation (sock_sendpage function) on a PF_PPPOX socket.

Key facts

CVSS score: 7.8 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-908
EPSS score: 14.6% (97th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2009-2685)
Published: August 14, 2009
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2009-2685 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

debian / debian linux
linux / linux kernel
redhat / enterprise linux desktop
redhat / enterprise linux desktop
redhat / enterprise linux eus
redhat / enterprise linux eus
redhat / enterprise linux server
redhat / enterprise linux server
redhat / enterprise linux server aus
redhat / enterprise linux workstation
redhat / enterprise linux workstation
suse / linux enterprise real time

Certified products that may be affected

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

Red Hat Enterprise Linux 5 OpenSSH-Server Cryptographic Module - Red Hat®, Inc. - FIPS 140 1384 - historical
Red Hat Enterprise Linux AS, Version 4 Update 4 - Red Hat, Inc. - Common Criteria CCEVS-VR-0035-2006 - archived

References

http://archives.neohapsis.com/archives/fulldisclosure/2009-08/0174.html(Broken Link, Exploit)
http://blog.cr0.org/2009/08/linux-null-pointer-dereference-due-to.html(Exploit, Issue Tracking)
http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.4.37.y.git%3Ba=commit%3Bh=c18d0fe535a73b219f960d1af3d0c264555a12e3(Broken Link)
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=e694958388c50148389b0e9b9e9e8945cf0f1b98(Broken Link)
http://grsecurity.net/~spender/wunderbar_emporium.tgz(Broken Link)
http://lists.opensuse.org/opensuse-security-announce/2009-09/msg00001.html(Mailing List)
http://rhn.redhat.com/errata/RHSA-2009-1222.html(Third Party Advisory)
http://rhn.redhat.com/errata/RHSA-2009-1223.html(Third Party Advisory)
http://secunia.com/advisories/36278(Broken Link, Vendor Advisory)
http://secunia.com/advisories/36289(Broken Link, Vendor Advisory)
http://secunia.com/advisories/36327(Broken Link, Vendor Advisory)
http://secunia.com/advisories/36430(Broken Link, Vendor Advisory)
http://secunia.com/advisories/37298(Broken Link, Vendor Advisory)
http://secunia.com/advisories/37471(Broken Link, Vendor Advisory)
http://support.avaya.com/css/P8/documents/100067254(Third Party Advisory)
http://wiki.rpath.com/wiki/Advisories:rPSA-2009-0121(Broken Link)
http://www.debian.org/security/2009/dsa-1865(Mailing List, Third Party Advisory)
http://www.exploit-db.com/exploits/19933(Exploit, Third Party Advisory, VDB Entry)
http://www.exploit-db.com/exploits/9477(Third Party Advisory, VDB Entry)
http://www.kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.37.5(Broken Link, Vendor Advisory)
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.30.5(Broken Link, Vendor Advisory)
http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.31-rc6(Broken Link, Vendor Advisory)
http://www.mandriva.com/security/advisories?name=MDVSA-2009:233(Broken Link)
http://www.openwall.com/lists/oss-security/2009/08/14/1(Mailing List, Patch)
http://www.redhat.com/support/errata/RHSA-2009-1233.html(Broken Link)
http://www.securityfocus.com/archive/1/505751/100/0/threaded(Broken Link, Third Party Advisory, VDB Entry)
http://www.securityfocus.com/archive/1/505912/100/0/threaded(Broken Link, Third Party Advisory, VDB Entry)
http://www.securityfocus.com/archive/1/507985/100/0/threaded(Broken Link, Third Party Advisory, VDB Entry)
http://www.securityfocus.com/archive/1/512019/100/0/threaded(Broken Link, Third Party Advisory, VDB Entry)
http://www.securityfocus.com/bid/36038(Broken Link, Exploit, Third Party Advisory, VDB Entry)
http://www.vmware.com/security/advisories/VMSA-2009-0016.html(Third Party Advisory)
http://www.vupen.com/english/advisories/2009/2272(Broken Link, Patch, Vendor Advisory)
http://www.vupen.com/english/advisories/2009/3316(Broken Link, Vendor Advisory)
http://zenthought.org/content/file/android-root-2009-08-16-source(Broken Link)
https://bugzilla.redhat.com/show_bug.cgi?id=516949(Issue Tracking, Patch)
https://issues.rpath.com/browse/RPL-3103(Broken Link)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11526(Broken Link)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11591(Broken Link)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8657(Broken Link)

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

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