# CVE-2016-7125: Deserialization in n/a

> Remote attackers can inject arbitrary session data via crafted session names, potentially leading to code execution in PHP applications.

- **Severity:** High 7.5 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 12 Sep 2016
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-r949-99vg-366c, UBUNTU-CVE-2016-7125

## What is CVE-2016-7125?

CVE-2016-7125 is a high-severity unsafe deserialization vulnerability in Php Php, published on 12 Sep 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

ext/session/session.c in PHP before 5.6.25 and 7.x before 7.0.10 skips invalid session names in a way that triggers incorrect parsing, which allows remote attackers to inject arbitrary-type session data by leveraging control of a session name, as demonstrated by object injection.

Weakness: CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component)

## Which versions are affected by CVE-2016-7125?

It affects 1 product.


Products: Php Php.

## How do I fix CVE-2016-7125?

Upgrade to a fixed version.

## Is CVE-2016-7125 being exploited?

There is no known exploitation of CVE-2016-7125 in the wild and no public exploit code.

## Other vulnerabilities in Php Php

- [CVE-2012-2688](https://insights.sbomify.com/CVE-2012-2688/): Integer overflow in n/a (critical 10.0)
- [CVE-2012-2376](https://insights.sbomify.com/CVE-2012-2376/): Memory corruption in n/a (critical 10.0)
- [CVE-2011-3268](https://insights.sbomify.com/CVE-2011-3268/): Memory corruption in n/a (critical 10.0)
- [CVE-2009-4143](https://insights.sbomify.com/CVE-2009-4143/): Other in n/a (critical 10.0)
- [CVE-2008-5557](https://insights.sbomify.com/CVE-2008-5557/): Memory corruption in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-7125 and fix it if it is affected.

What it is: CVE-2016-7125 is a high-severity unsafe deserialization vulnerability in Php Php, published on 12 Sep 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2016-7125 in the wild and no public exploit code.

Affected product: Php Php. 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-2016-7125/ (Markdown: https://insights.sbomify.com/CVE-2016-7125/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-7125
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-7125
- OSV: https://osv.dev/vulnerability/CVE-2016-7125

---
From sbomify Insights: https://insights.sbomify.com/CVE-2016-7125/
Summaries are generated and may contain mistakes; the official description above is the record.