CVE-2005-0449: linux linux_kernel Improper Input Validation
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Vulnerability summary
CVE-2005-0449 is a high (CVSS 7.1) Improper Input Validation vulnerability in linux linux_kernel. EPSS estimates a 4.64% chance of exploitation in the next 30 days, higher than 91.7% of scored vulnerabilities.
Not severe (CVSS 7.1, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 4Timeline
- 16-02-2005PublishedVulnerability first disclosed.
- 07-08-2024Last modifiedVulnerability information updated.
Description
The netfilter/iptables module in Linux before 2.6.8.1 allows remote attackers to cause a denial of service (kernel crash) or bypass firewall rules via crafted packets, which are not properly handled by the skb_checksum_help function.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
4.64%
Chance of exploitation in the next 30 days
Percentile
92%
Versus all other CVEs
30-day change
No change 0.00 pp
From 4.64% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.
Linux1 product
- linux_kernel2.6.0 | 2.6.1 | 2.6.2 | 2.6.3 | 2.6.4 | 2.6.5 | 2.6.6 | 2.6.7 | 2.6.8
1 vendor · 1 product
References
17 links- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10753VDB EntrySignatureX Refsource OVAL
