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CVE-1999-1549

HIGHCVSS 7.8/10EPSS 0.58%

Last modified

CVE-1999-1549 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Lynx 2.x does not properly distinguish between internal and external HTML, which may allow a local attacker to read a "secure" hidden form value from a temporary file and craft a LYNXOPTIONS: URL that causes Lynx to modify the user's configuration file and execute commands.. EPSS estimates a 0.58% chance of exploitation in the next 30 days.

Description

Lynx 2.x does not properly distinguish between internal and external HTML, which may allow a local attacker to read a "secure" hidden form value from a temporary file and craft a LYNXOPTIONS: URL that causes Lynx to modify the user's configuration file and execute commands.

Metrics

CVSS 3.1
7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.58%

43.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
Lynx ProjectLynx2.7
Lynx ProjectLynx2.8

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-1999-1549?
Lynx 2.x does not properly distinguish between internal and external HTML, which may allow a local attacker to read a "secure" hidden form value from a temporary file and craft a LYNXOPTIONS: URL that causes Lynx to modify the user's configuration file and execute commands.
How severe is CVE-1999-1549?
CVE-1999-1549 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.58% probability of exploitation in the next 30 days.
How do I fix CVE-1999-1549?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

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Source: NVD / NIST