What’s Vulnerable › Vulnerabilities

CVE-2021-39534

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-09-20 · updated 2026-06-17
• Weakness: CWE-787

Description

An issue was discovered in libslax through v0.22.1. slaxIsCommentStart() in slaxlexer.c has a heap-based buffer overflow.

Affected products

• juniper/libslax: through 0.22.1

References

• https://github.com/Juniper/libslax/issues/52
• https://github.com/Juniper/libslax/issues/52

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