# CVE-2023-26496: Memory corruption in n/a

> Attackers can trigger memory corruption in Samsung Exynos modems via malformed SDP packets, potentially leading to code execution or privilege escalation.

- **Severity:** High 8.6 (`CVSS:3.1/AC:L/AV:N/A:H/C:L/I:L/PR:N/S:U/UI:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 23 Mar 2023
- **Updated:** 25 Feb 2025
- **Also known as:** A-274465028, GHSA-pqvr-f3f6-cc4q, PUB-A-274465028

## What is CVE-2023-26496?

CVE-2023-26496 is a high-severity memory corruption vulnerability in Samsung Exynos 1080 Firmware, published on 23 Mar 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An issue was discovered in Samsung Baseband Modem Chipset for Exynos Modem 5123, Exynos Modem 5300, Exynos 980, Exynos 1080, and Exynos Auto T5124. Memory corruption can occur due to improper checking of the parameter length while parsing the fmtp attribute in the SDP (Session Description Protocol) module.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2023-26496?

It affects 5 products.


Products: Samsung Exynos 1080 Firmware, Samsung Exynos 980 Firmware, Samsung Exynos Auto T5123 Firmware, Samsung Exynos Modem 5123 Firmware, Samsung Exynos Modem 5300 Firmware.

## How do I fix CVE-2023-26496?

Apply the vendor's patch.

## Is CVE-2023-26496 being exploited?

There is no known exploitation of CVE-2023-26496 in the wild and no public exploit code.

## Other vulnerabilities in Samsung Exynos 1080 Firmware

- [CVE-2025-54328](https://insights.sbomify.com/CVE-2025-54328/): Memory corruption in n/a (critical 10.0)
- [CVE-2025-62818](https://insights.sbomify.com/CVE-2025-62818/): Memory corruption in n/a (critical 9.8)
- [CVE-2025-58349](https://insights.sbomify.com/CVE-2025-58349/): Denial of service in n/a (critical 9.1)
- [CVE-2025-27807](https://insights.sbomify.com/CVE-2025-27807/): Memory corruption in n/a (critical 9.1)
- [CVE-2025-47202](https://insights.sbomify.com/CVE-2025-47202/): Memory corruption in n/a (critical 9.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-26496 and fix it if it is affected.

What it is: CVE-2023-26496 is a high-severity memory corruption vulnerability in Samsung Exynos 1080 Firmware, published on 23 Mar 2023. 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-2023-26496 in the wild and no public exploit code.

Affected product: Samsung Exynos 1080 Firmware. 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-2023-26496/ (Markdown: https://insights.sbomify.com/CVE-2023-26496/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-26496
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-26496
- OSV: https://osv.dev/vulnerability/CVE-2023-26496

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-26496/
Summaries are generated and may contain mistakes; the official description above is the record.