Is CVE-2009-1633 being actively exploited?

CVE-2009-1633 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2009-1633?

CVE-2009-1633 has a CVSS 2.0 base score of 7.1 (HIGH).

CVE-2009-1633

HIGH · CVSS 7.1EPSS 3.0%EU EUVD

Multiple buffer overflows in the cifs subsystem in the Linux kernel before 2.6.29.4 allow remote CIFS servers to cause a denial of service (memory corruption) and possibly have unspecified other impact via (1) a malformed Unicode string, related to Unicode string area alignment in fs/cifs/sess.c; or (2) long Unicode characters, related to fs/cifs/cifssmb.c and the cifs_readdir function in fs/cifs/readdir.c.

Key facts

CVSS score: 7.1 (v2.0)
Severity: HIGH
CVSS vector: AV:N/AC:M/Au:N/C:N/I:N/A:C
Weakness (CWE): CWE-119
EPSS score: 3.0% (88th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2009-1628)
Published: May 28, 2009
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2009-1628 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

canonical / ubuntu linux
canonical / ubuntu linux
canonical / ubuntu linux
canonical / ubuntu linux
debian / debian linux
debian / debian linux
linux / linux kernel

References

http://git.kernel.org/?p=linux/kernel/git/sfrench/cifs-2.6.git%3Ba=commit%3Bh=7b0c8fcff47a885743125dd843db64af41af5a61
http://git.kernel.org/?p=linux/kernel/git/sfrench/cifs-2.6.git%3Ba=commit%3Bh=968460ebd8006d55661dec0fb86712b40d71c413
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=27b87fe52baba0a55e9723030e76fce94fabcea4
http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00005.html(Mailing List, Third Party Advisory)
http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00007.html(Mailing List, Third Party Advisory)
http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html(Mailing List, Third Party Advisory)
http://marc.info/?l=oss-security&m=124099284225229&w=2(Mailing List, Third Party Advisory)
http://marc.info/?l=oss-security&m=124099371726547&w=2(Mailing List, Third Party Advisory)
http://secunia.com/advisories/35217(Third Party Advisory)
http://secunia.com/advisories/35226(Third Party Advisory)
http://secunia.com/advisories/35298(Third Party Advisory)
http://secunia.com/advisories/35656(Third Party Advisory)
http://secunia.com/advisories/35847(Third Party Advisory)
http://secunia.com/advisories/36051(Third Party Advisory)
http://secunia.com/advisories/36327(Third Party Advisory)
http://secunia.com/advisories/37351(Third Party Advisory)
http://secunia.com/advisories/37471(Third Party Advisory)
http://wiki.rpath.com/Advisories:rPSA-2009-0111(Broken Link)
http://www.debian.org/security/2009/dsa-1809(Third Party Advisory)
http://www.debian.org/security/2009/dsa-1844(Third Party Advisory)
http://www.debian.org/security/2009/dsa-1865(Third Party Advisory)
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.29.4(Vendor Advisory)
http://www.mandriva.com/security/advisories?name=MDVSA-2009:148(Third Party Advisory)
http://www.openwall.com/lists/oss-security/2009/05/14/1(Mailing List, Patch, Third Party Advisory)
http://www.openwall.com/lists/oss-security/2009/05/14/4(Mailing List, Patch, Third Party Advisory)
http://www.openwall.com/lists/oss-security/2009/05/15/2(Mailing List, Patch, Third Party Advisory)
http://www.redhat.com/support/errata/RHSA-2009-1157.html(Third Party Advisory)
http://www.securityfocus.com/archive/1/505254/100/0/threaded(Third Party Advisory, VDB Entry)
http://www.securityfocus.com/archive/1/507985/100/0/threaded(Third Party Advisory, VDB Entry)
http://www.securityfocus.com/bid/34612(Third Party Advisory, VDB Entry)
http://www.ubuntu.com/usn/usn-793-1(Third Party Advisory)
http://www.vmware.com/security/advisories/VMSA-2009-0016.html(Third Party Advisory)
http://www.vupen.com/english/advisories/2009/3316(Third Party Advisory)
https://bugzilla.redhat.com/show_bug.cgi?id=496572(Issue Tracking, Patch, Third Party Advisory)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8588(Third Party Advisory)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9525(Third Party Advisory)
https://www.redhat.com/archives/fedora-package-announce/2009-May/msg01126.html(Patch, Third Party Advisory)
https://www.redhat.com/archives/fedora-package-announce/2009-May/msg01271.html(Third Party Advisory)

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

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