CVE-2016-1287
CriticalPublic exploitBuffer overflow in the IKEv1 and IKEv2 implementations in Cisco ASA Software before 8.4(7.30), 8.7 before 8.7(1.18), 9.0 before 9.0(4.38), 9.1 before 9.1(7), 9.2 before 9.2(4.5), 9.3 before 9.3(3.7), 9.4 before 9.4(2.4), and 9.5 before 9.5(2.2) on ASA 5500 devices, ASA 5500-X…
Published Feb 11, 2016 · Updated May 6, 2026
Key Facts
Patch immediately- CVE-2016-1287 is a critical-severity vulnerability (CVSS 9.8 v3) affecting Adaptive Security Appliance Software (Cisco).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 74% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3
9.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
74%
Higher than 99.4% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2016-1287 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
Buffer overflow in the IKEv1 and IKEv2 implementations in Cisco ASA Software before 8.4(7.30), 8.7 before 8.7(1.18), 9.0 before 9.0(4.38), 9.1 before 9.1(7), 9.2 before 9.2(4.5), 9.3 before 9.3(3.7), 9.4 before 9.4(2.4), and 9.5 before 9.5(2.2) on ASA 5500 devices, ASA 5500-X devices, ASA Services Module for Cisco Catalyst 6500 and Cisco 7600 devices, ASA 1000V devices, Adaptive Security Virtual Appliance (aka ASAv), Firepower 9300 ASA Security Module, and ISA 3000 devices allows remote attackers to execute arbitrary code or cause a denial of service (device reload) via crafted UDP packets, aka Bug IDs CSCux29978 and CSCux42019.
Affected Products
199 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Adaptive Security Appliance SoftwareCisco | 7.2.1, 7.2.1.13, 7.2.1.19, 7.2.1.24, 7.2.1.9, 7.2.2, 7.2.2.10, 7.2.2.14 | n/a |
Timeline
Publicly disclosed
Feb 11, 2016
Last updated
May 6, 2026
Weakness Type
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
- advisoryVU#327976
- advisory20160210 Cisco ASA Software IKEv1 and IKEv2 Buffer Overflow Vulnerability
- advisory1034997
- exploithttp://packetstormsecurity.com/files/137100/Cisco-ASA-Software-IKEv1-IKEv2-Buffer-Overflow.html
- exploithttps://blog.exodusintel.com/2016/02/10/firewall-hacking/
FAQ
Common Questions.
Buffer overflow in the IKEv1 and IKEv2 implementations in Cisco ASA Software before 8.4(7.30), 8.7 before 8.7(1.18), 9.0 before 9.0(4.38), 9.1 before 9.1(7), 9.2 before 9.2(4.5), 9.3 before 9.3(3.7), 9.4 before 9.4(2.4), and 9.5 before 9.5(2.2) on ASA 5500 devices, ASA 5500-X devices, ASA Services Module for Cisco Cat…
Affected: Adaptive Security Appliance Software (Cisco) versions 7.2.1, 7.2.1.13, 7.2.1.19, 7.2.1.24, 7.2.1.9, 7.2.2, 7.2.2.10, 7.2.2.14. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
Is CVE-2016-1287 Running On Your Attack Surface?
Brandefense maps vulnerabilities like this one to your internet-facing assets and tells you exactly where to patch.
Request A Demo