Is CVE-2009-2698 in the CISA KEV catalog?

No. CVE-2009-2698 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2009-2698?

CVE-2009-2698 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2009-2698?

CVE-2009-2698 has an EPSS score of 7.18% (94th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2009-2698?

Upgrade linux kernel to 2.6.19 or later.

CVE & CISA-KEV Catalog

CVE-2009-2698

HIGHEPSS 94th pctl

7.8

CVSS v3

NVD

Description

The udp_sendmsg function in the UDP implementation in (1) net/ipv4/udp.c and (2) net/ipv6/udp.c in the Linux kernel before 2.6.19 allows local users to gain privileges or cause a denial of service (NULL pointer dereference and system crash) via vectors involving the MSG_MORE flag and a UDP socket.

CWE-476NULL Pointer Dereference

How to fix

Remediation Available

linux kernelNVD

Affected:< 2.6.19Fixed in:2.6.19CVE-2009-2698derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

7.18%probability of exploitation in 30 days

94thpercentile

High risk: more likely to be exploited than 94% of all known CVEs.

References

Patch1

securityfocus.com

Vendor Advisory7

Third-Party Advisory15

Mailing List1

openwall.com

Other references2

Related Vulnerabilities

Other CWE-476 (NULL Pointer Dereference) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-21758	High	7.5	92%	-	Fix
CVE-2023-21547	High	7.5	88%	-	Fix
CVE-2014-3470	Medium	4.3	86%	-	Fix
CVE-2021-44224	High	8.2	82%	-	Fix
CVE-2016-0742	High	7.5	82%	-	Fix
CVE-2009-1386	Medium	5.0	80%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-23.