What’s Vulnerable › Vulnerabilities

CVE-2020-36120

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-04-14 · updated 2026-06-17
• Weakness: CWE-120

Description

Buffer Overflow in the "sixel_encoder_encode_bytes" function of Libsixel v1.8.6 allows attackers to cause a Denial of Service (DoS).

Affected products

• saitoha libsixel: 1.8.6

References

• https://github.com/saitoha/libsixel/issues/143
• https://github.com/saitoha/libsixel/issues/143

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