Memory leak in the PPP over Ethernet (PPPoE) socket implementation in the Linux kernel before 2.6.21-git8 allows local users to cause a denial of service (memory consumption) by creating a socket using connect, and releasing it before the PPPIOCGCHAN ioctl is initialized.
CVE-2007-2525
NONECVSS 0.0
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 0%CVSS: —Exploit: NoneExposed: 0
A fix is available — apply it.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 32.6%
- KEV
- Not listed
Published
May 8, 2007
Last Modified
April 23, 2026
References (60)
- cve@mitrehttp://kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.21-git8.log
- cve@mitrehttp://rhn.redhat.com/errata/RHSA-2007-0488.html
- cve@mitrehttp://secunia.com/advisories/25163
- cve@mitrehttp://secunia.com/advisories/25700
- cve@mitrehttp://secunia.com/advisories/25838
- cve@mitrehttp://secunia.com/advisories/26133
- cve@mitrehttp://secunia.com/advisories/26139
- cve@mitrehttp://secunia.com/advisories/26289
- cve@mitrehttp://secunia.com/advisories/26450
- cve@mitrehttp://secunia.com/advisories/26620
- cve@mitrehttp://secunia.com/advisories/26664
- cve@mitrehttp://secunia.com/advisories/27227
- cve@mitrehttp://secunia.com/advisories/29058
- cve@mitrehttp://support.avaya.com/elmodocs2/security/ASA-2007-287.htm
- cve@mitrehttp://www.debian.org/security/2007/dsa-1356
Patch Availability(5)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | linux-image-2.6.20-16-server-bigiron (2.6.20-16.31) @ feisty | 2026-05-31 | ubuntu |
| ubuntu | linux-image-2.6.15-28-sparc64 (2.6.15-28.57) @ dapper | 2026-05-31 | ubuntu |
| ubuntu | linux-image-2.6.17-12-server (2.6.17.1-12.39) @ edgy | 2026-05-31 | ubuntu |
| redhat | kernel-0:2.6.9-55.0.2.EL | 2007-06-25 | redhat |
| redhat | kernel-0:2.6.18-8.1.6.el5 | 2007-06-14 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
All Vendor Advisories
(5)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Frequently asked(4)
What is CVE-2007-2525?
CVE-2007-2525 is a none vulnerability published on May 8, 2007. Memory leak in the PPP over Ethernet (PPPoE) socket implementation in the Linux kernel before 2.6.21-git8 allows local users to cause a denial of service (memory consumption) by creating a socket using connect, and releasing it before the PPPIOCGCHAN ioctl is initialized.
When was CVE-2007-2525 disclosed?
CVE-2007-2525 was first published in the National Vulnerability Database on May 8, 2007, with the most recent update on April 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2007-2525 actively exploited?
CVE-2007-2525 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 32.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2007-2525?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2007-2525, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
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