An issue was discovered in Samsung Mobile Chipset and Baseband Modem Chipset for Exynos…
Priority MEDIUM 44CWE-120Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.
Summary
An issue was discovered in Samsung Mobile Chipset and Baseband Modem Chipset for Exynos 1280, Exynos 2200, Exynos Modem 5123, Exynos Modem 5300, and Exynos Auto T5123. An intra-object overflow in the 5G SM message codec can occur due to insufficient parameter validation when decoding reserved options.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00926 60th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 10
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:samsung:exynos_1280_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Samsung |
| cpe:2.3:h:samsung:exynos_1280:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Samsung |
| cpe:2.3:o:samsung:exynos_2200_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Samsung |
| cpe:2.3:h:samsung:exynos_2200:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Samsung |
| cpe:2.3:o:samsung:exynos_modem_5123_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Samsung |
| cpe:2.3:h:samsung:exynos_modem_5123:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Samsung |
| cpe:2.3:o:samsung:exynos_modem_5300_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Samsung |
| cpe:2.3:h:samsung:exynos_modem_5300:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Samsung |
| cpe:2.3:o:samsung:exynos_auto_t5123_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Samsung |
| cpe:2.3:h:samsung:exynos_auto_t5123:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Samsung |
- cpe:2.3:o:samsung:exynos_1280_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Samsung
- cpe:2.3:h:samsung:exynos_1280:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Samsung
- cpe:2.3:o:samsung:exynos_2200_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Samsung
- cpe:2.3:h:samsung:exynos_2200:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Samsung
- cpe:2.3:o:samsung:exynos_modem_5123_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Samsung
- cpe:2.3:h:samsung:exynos_modem_5123:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Samsung
- cpe:2.3:o:samsung:exynos_modem_5300_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Samsung
- cpe:2.3:h:samsung:exynos_modem_5300:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Samsung
- cpe:2.3:o:samsung:exynos_auto_t5123_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Samsung
- cpe:2.3:h:samsung:exynos_auto_t5123:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Samsung
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-26076
- 2026-10-03 Alias added: GHSA-64g2-hhj4-h788
References
Other 4
- https://semiconductor.samsung.com/processor/modem/
- https://semiconductor.samsung.com/processor/mobile-processor/
- https://googleprojectzero.blogspot.com/2023/03/multiple-internet-to-baseband-remote-rce.html
- http://packetstormsecurity.com/files/171400/Shannon-Baseband-NrSmPcoCodec-Intra-Object-Overflow.html
More Samsung Exynos 1280 Firmware vulnerabilities
- TI-2023-11308 An issue was discovered in Samsung Mobile Chipset and Baseband Modem Chipset for Exynos… CVSS 3.1CRITICAL 9.8
- TI-2023-11307 An issue was discovered in Samsung Mobile Chipset and Baseband Modem Chipset for Exynos… CVSS 3.1CRITICAL 9.8
- TI-2023-11306 An issue was discovered in Samsung Mobile Chipset and Baseband Modem Chipset for Exynos… CVSS 3.1CRITICAL 9.8
- TI-2023-11305 An issue was discovered in Samsung Mobile Chipset and Baseband Modem Chipset for Exynos… CVSS 3.1CRITICAL 9.8
- TI-2024-31327 An issue was discovered in Samsung Mobile Processor and Modem Exynos 9820, 9825, 980… CVSS 3.1MEDIUM 6.5
- TI-2025-34152 An issue was discovered in SMS in Samsung Mobile Processor, Wearable Processor, and Modem… CVSS 3.1CRITICAL 10.0
Sources
- CVE-2023-26076 · CVE Program
- CVE-2023-26076 · NVD
- FIRST EPSS
- GHSA-64g2-hhj4-h788 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences