What’s Vulnerable › Vulnerabilities

CVE-2017-11721

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2017-08-03 · updated 2026-06-17
• Weakness: CWE-119

Description

Buffer overflow in ioquake3 before 2017-08-02 allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted packet.

Affected products

• Ioquake3: through 2017-07-31

References

• http://www.debian.org/security/2017/dsa-3941
• http://www.debian.org/security/2017/dsa-3948
• https://github.com/ioquake/ioq3/commit/d2b1d124d4055c2fcbe5126863487c52fd58cca1
• http://www.debian.org/security/2017/dsa-3941
• http://www.debian.org/security/2017/dsa-3948
• https://github.com/ioquake/ioq3/commit/d2b1d124d4055c2fcbe5126863487c52fd58cca1

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