Heap-based buffer overflow in the convert_to_idna function in…
Priority LOW 36CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
Heap-based buffer overflow in the convert_to_idna function in WWW/Library/Implementation/HTParse.c in Lynx 2.8.8dev.1 through 2.8.8dev.4 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a malformed URL containing a % (percent) character in the domain name.
Why it matters now
EPSS 0.03663 89th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:lynx:lynx:2.8.8:dev.1:*:*:*:*:*:* | 2.8.8 dev.1 | Vulnerable | Lynx |
| cpe:2.3:a:lynx:lynx:2.8.8:dev.2:*:*:*:*:*:* | 2.8.8 dev.2 | Vulnerable | Lynx |
| cpe:2.3:a:lynx:lynx:2.8.8:dev.3:*:*:*:*:*:* | 2.8.8 dev.3 | Vulnerable | Lynx |
| cpe:2.3:a:lynx:lynx:2.8.8:dev.4:*:*:*:*:*:* | 2.8.8 dev.4 | Vulnerable | Lynx |
- cpe:2.3:a:lynx:lynx:2.8.8:dev.1:*:*:*:*:*:* Versions 2.8.8 dev.1 Vulnerable ·Lynx
- cpe:2.3:a:lynx:lynx:2.8.8:dev.2:*:*:*:*:*:* Versions 2.8.8 dev.2 Vulnerable ·Lynx
- cpe:2.3:a:lynx:lynx:2.8.8:dev.3:*:*:*:*:*:* Versions 2.8.8 dev.3 Vulnerable ·Lynx
- cpe:2.3:a:lynx:lynx:2.8.8:dev.4:*:*:*:*:*:* Versions 2.8.8 dev.4 Vulnerable ·Lynx
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Not affected: 3 products
- Red Hat Enterprise Linux 4
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
Timeline
- 2026-10-02 Threatist record created from CVE-2010-2810
- 2026-10-03 Alias added: GHSA-9h97-c3c6-r77v
References
More Lynx vulnerabilities
- TI-2008-04473 lynx 2.8.6dev.15 and earlier, when advanced mode is enabled and lynx is configured as a… CVSS 2.0HIGH 10.0
- TI-2016-07508 lynx: It was found that Lynx doesn't parse the authority component of the URL correctly… CVSS 3.0HIGH 7.5
- TI-2012-04862 Lynx does not verify that the server's certificate is signed by a trusted certification… CVSS 3.1MEDIUM 5.9
- TI-2006-06974 Untrusted search path vulnerability in Lynx before 2.8.6rel.4 allows local users to… CVSS 2.0MEDIUM 4.6
Sources
- CVE-2010-2810 · CVE Program
- CVE-2010-2810 · NVD
- FIRST EPSS
- GHSA-9h97-c3c6-r77v · GitHub Advisory Database · CC BY 4.0
- CVE-2010-2810 · Red Hat security data · CC BY 4.0
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