# CVE-2016-1287: Memory corruption in n/a

> Remote attackers can execute arbitrary code or cause denial of service on Cisco ASA devices via crafted UDP packets due to a buffer overflow in IKE implementations.

- **Severity:** Critical 9.8 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 11 Feb 2016
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-8657-w7wc-ccqj

## What is CVE-2016-1287?

CVE-2016-1287 is a critical memory corruption vulnerability in Cisco Adaptive Security Appliance Software, published on 11 Feb 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official 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.

Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2016-1287?

It affects 1 product.


Products: Cisco Adaptive Security Appliance Software.

## How do I fix CVE-2016-1287?

No fix has been published for CVE-2016-1287 yet. Limit exposure of the affected software until one is available.

## Is CVE-2016-1287 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-1287 exists.

Public exploit code:

- Verification tools for CVE-2016-1287 (github_poc): https://github.com/NetSPI/asa_tools
- CVE-2016-1287 vulnerability test (github_poc): https://github.com/jgajek/killasa
- Cisco ASA Software 8.x/9.x - IKEv1 / IKEv2 Buffer Overflow (exploitdb)

## Other vulnerabilities in Cisco Adaptive Security Appliance Software

- [CVE-2025-20333](https://insights.sbomify.com/CVE-2025-20333/): Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) Buffer Overflow (critical 9.9, exploited in the wild)
- [CVE-2016-6366](https://insights.sbomify.com/CVE-2016-6366/): Cisco Adaptive Security Appliance (ASA) SNMP Buffer Overflow (high 8.8, exploited in the wild)
- [CVE-2026-20349](https://insights.sbomify.com/CVE-2026-20349/): Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) Heap Inspection (high 8.6, exploited in the wild)
- [CVE-2024-20353](https://insights.sbomify.com/CVE-2024-20353/): Cisco ASA and FTD Denial of Service (high 8.6, exploited in the wild)
- [CVE-2016-6367](https://insights.sbomify.com/CVE-2016-6367/): Cisco Adaptive Security Appliance (ASA) CLI Remote Code Execution (high 7.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-1287 and fix it if it is affected.

What it is: CVE-2016-1287 is a critical memory corruption vulnerability in Cisco Adaptive Security Appliance Software, published on 11 Feb 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-1287 exists.

Affected product: Cisco Adaptive Security Appliance Software. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2016-1287/ (Markdown: https://insights.sbomify.com/CVE-2016-1287/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-1287
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-1287
- OSV: https://osv.dev/vulnerability/CVE-2016-1287

---
From sbomify Insights: https://insights.sbomify.com/CVE-2016-1287/
Summaries are generated and may contain mistakes; the official description above is the record.