CVE-2016-5360
HAproxy 1.6.x before 1.6.6, when a deny comes from a reqdeny rule, allows remote attackers to cause a denial of service (uninitialized memory access and crash) or possibly have unspecified other impact via unknown vectors.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 42.8%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
HAproxy 1.6.x before 1.6.6, when a deny comes from a reqdeny rule, allows remote attackers to cause a denial of service (uninitialized memory access and crash) or possibly have unspecified other impact via unknown vectors.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 42.82% probability · 99th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- canonical/ubuntu linux · haproxy/haproxy
- Source
- security@opentext.com
EPSS moved from 40.4% on 21 September 2026 to 42.8% on 26 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- http://git.haproxy.org/?p=haproxy-1.6.git%3Ba=commit%3Bh=60f01f8c89e4fb2723d5a9f2046286e699567e0b
- http://www.openwall.com/lists/oss-security/2016/06/09/5
- http://www.openwall.com/lists/oss-security/2016/06/09/6
- http://www.ubuntu.com/usn/USN-3011-1
- http://git.haproxy.org/?p=haproxy-1.6.git%3Ba=commit%3Bh=60f01f8c89e4fb2723d5a9f2046286e699567e0b
- http://www.openwall.com/lists/oss-security/2016/06/09/5
- http://www.openwall.com/lists/oss-security/2016/06/09/6
- http://www.ubuntu.com/usn/USN-3011-1
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.