CVE-2007-1497: linux linux_kernel
Vulnerability summary
CVE-2007-1497 is a medium (CVSS 5.0) vulnerability in linux linux_kernel. EPSS estimates a 3.11% chance of exploitation in the next 30 days, higher than 87.8% of scored vulnerabilities.
Not severe (CVSS 5, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 2Timeline
- 16-03-2007PublishedVulnerability first disclosed.
- 07-08-2024Last modifiedVulnerability information updated.
Description
nf_conntrack in netfilter in the Linux kernel before 2.6.20.3 does not set nfctinfo during reassembly of fragmented packets, which leaves the default value as IP_CT_ESTABLISHED and might allow remote attackers to bypass certain rulesets using IPv6 fragments.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
3.11%
Chance of exploitation in the next 30 days
Percentile
88%
Versus all other CVEs
30-day change
Increase +0.10 pp
From 3.02% 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 causeNo weakness data has been published for this record.
Affected systems
Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.
Linux1 product
- linux_kernel≤ 2.6.20.2
1 vendor · 1 product
References
17 links- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10457VDB EntrySignatureX Refsource OVAL
- www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.20.3X Refsource CONFIRM
