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CVE-2008-4690

29
FAUCET Score

CVE-2008-4690 describes a critical vulnerability in Lynx 2.8.6dev.15 and earlier, where enabling advanced mode and configuring Lynx as a URL handler allows remote attackers to execute arbitrary commands through a specially crafted lynxcgi: URL. This vulnerability carries a CVSS score of 10.0, indicating a severe risk with network-based attacks requiring low complexity and no authentication, leading to complete compromise of confidentiality, integrity, and availability. Despite its critical severity and high EPSS score, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.8.6CPE matchmatch criteria
cpe:2.3:a:lynx:lynx:*:dev15:*:*:*:*:*:*
2.8.1CPE matchmatch criteria
cpe:2.3:a:lynx:lynx:2.8.1:dev.1:*:*:*:*:*:*
2.8.1CPE matchmatch criteria
cpe:2.3:a:lynx:lynx:2.8.1:dev.10:*:*:*:*:*:*
2.8.1CPE matchmatch criteria
cpe:2.3:a:lynx:lynx:2.8.1:dev.11:*:*:*:*:*:*
2.8.1CPE matchmatch criteria
cpe:2.3:a:lynx:lynx:2.8.1:dev.12:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

AV:N/AC:L/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
5.06%
Probability of exploitation in next 30 days
EPSS Percentile
91.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0506 is in the 85th percentile among its peer group of 51,466 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 2.1Fixed in: lynx-0:2.8.4-18.1.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 3Fixed in: lynx-0:2.8.5-11.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: lynx-0:2.8.5-18.2.el4_7.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: lynx-0:2.8.5-28.1.el5_2.1
View patch

Vendor Advisories (1)

redhatCVE-2008-4690Important

lynx: remote arbitrary command execution via a crafted lynxcgi: URL

Oct 9, 2008

References

lists.opensuse.org / opensuse-security-announce/2009-01/msg00004.html
secunia.com / advisories/32416
Vendor Advisory
secunia.com / advisories/32967
secunia.com / advisories/33568
exchange.xforce.ibmcloud.com / vulnerabilities/46228
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11204
redhat.com / archives/fedora-package-announce/2008-December/msg00066.html
redhat.com / archives/fedora-package-announce/2008-December/msg00143.html
mandriva.com / security/advisories
mandriva.com / security/advisories
openwall.com / lists/oss-security/2008/10/09/2
redhat.com / support/errata/RHSA-2008-0965.html
Vendor Advisory
securitytracker.com / id