CVE-2007-4567: linux linux_kernel Improper Input Validation
Vulnerability summary
CVE-2007-4567 is a high (CVSS 7.8) Improper Input Validation vulnerability in linux linux_kernel. EPSS estimates a 14.34% chance of exploitation in the next 30 days, higher than 96.6% of scored vulnerabilities. 1 public exploit is recorded.
Public exploit (exploit-database, 19-12-2007)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 4Timeline
- 21-12-2007PublishedVulnerability first disclosed.
- 07-08-2024Last modifiedVulnerability information updated.
Description
The ipv6_hop_jumbo function in net/ipv6/exthdrs.c in the Linux kernel before 2.6.22 does not properly validate the hop-by-hop IPv6 extended header, which allows remote attackers to cause a denial of service (NULL pointer dereference and kernel panic) via a crafted IPv6 packet.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
14.34%
Chance of exploitation in the next 30 days
Percentile
97%
Versus all other CVEs
30-day change
No change 0.00 pp
From 14.34% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
1 foundLinux Kernel 2.6.22 - IPv6 Hop-By-Hop Header Remote Denial of Service
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.
Linux1 product
- linux_kernel≤ 2.6.21.7 | 2.2.27 | 2.4.36 | 2.4.36.1 | 2.4.36.2 | 2.4.36.3 | 2.4.36.4 | 2.4.36.5 | 2.4.36.6 | 2.6 | 2.6.18 | 2.6.18:rc1 | 2.6.18:rc2 | 2.6.18:rc3 | 2.6.18:rc4 | 2.6.18:rc5 | 2.6.18:rc6 | 2.6.18:rc7 | 2.6.19.4 | 2.6.19.5 | 2.6.19.6 | 2.6.19.7 | 2.6.20.16 | 2.6.20.17 | 2.6.20.18 | 2.6.20.19 | 2.6.20.20 | 2.6.20.21 | 2.6.21.5 | 2.6.21.6
1 vendor · 1 product
References
16 links- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7474VDB EntrySignatureX Refsource OVAL
- bugzilla.kernel.org/show_bug.cgi?id=8450X Refsource CONFIRM
- bugzilla.redhat.com/show_bug.cgi?id=548641X Refsource CONFIRM
Show all 16 references
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11083VDB EntrySignatureX Refsource OVAL
- git.kernel.orgX Refsource CONFIRM