What is the CVSS score of CVE-2023-24033?

CVE-2023-24033 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 34.5%.

Exynos 1080 Firmware CVE-2023-24033

CRITICAL

Improper Input Validation (CWE-20)

2023-03-13 cve@mitre.org

Denial Of Service Samsung Exynos 1080 Firmware Exynos 980 Firmware Exynos Modem 5123 Firmware Exynos Modem 5300 Firmware Exynos Auto T5123 Firmware

9.8

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-20 OWASP Top 10:2025 A05:2025 - Injection ASVS 5.0 V2 - Validation and Business Logic Input validation, allowlisting
Impact	CVSS score of 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required.
Exploit ScenarioDerived	This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the critical-severity affected system.

Act Now Prioritize within 24-48h. Why: CRITICAL + EPSS > 30%, no patch available.

No patch listed yet 34.5% exploitation probability (EPSS)

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AnalysisAI

The Samsung Exynos Modem 5123, Exynos Modem 5300, Exynos 980, Exynos 1080, and Exynos Auto T512 baseband modem chipsets do not properly check format types specified by the Session Description. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

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Technical ContextAI · show details

This vulnerability is classified under CWE-20. The Samsung Exynos Modem 5123, Exynos Modem 5300, Exynos 980, Exynos 1080, and Exynos Auto T512 baseband modem chipsets do not properly check format types specified by the Session Description Protocol (SDP) module, which can lead to a denial of service. Affected products include: Samsung Exynos Modem 5300 Firmware, Samsung Exynos Modem 5123 Firmware, Samsung Exynos 980 Firmware, Samsung Exynos 1080 Firmware, Samsung Exynos Auto T5123 Firmware.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

DescriptionNVD

The Samsung Exynos Modem 5123, Exynos Modem 5300, Exynos 980, Exynos 1080, and Exynos Auto T512 baseband modem chipsets do not properly check format types specified by the Session Description Protocol (SDP) module, which can lead to a denial of service.

Threat Intelligence Overview

EPSS Score

34.5%

Top 2% exploitable

Data Quality

2 sources

Confidence: Low

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity CRITICAL

CISA KEV No

Public POC No

EPSS 34.5%

Patch available No

Active threat No

Deciding rule

CRITICAL + EPSS > 30%, no patch available

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +35

CVSS: +49

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Denial of Service MEDIUM

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Affected Products (CPE)NVD

cpe:2.3:o:samsung:exynos_modem_5300_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:samsung:exynos_modem_5123_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:samsung:exynos_980_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:samsung:exynos_1080_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:samsung:exynos_auto_t5123_firmware:-:*:*:*:*:*:*:*

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Same weakness CWE-20 – Improper Input Validation

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CVE-2015-5119 CRITICAL POC

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9.8

CVE-2011-0611 HIGH POC

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CVE-2012-1889 HIGH POC

8.8

CVE-2012-0507 CRITICAL POC

9.8

CVE-2014-1761 HIGH POC

7.8

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9.8

CVE-2011-0609 HIGH POC

7.8

References

Advisories & patches

ADVISORY https://semiconductor.samsung.com/support/quality-support/product-security-updates/ REF http://packetstormsecurity.com/files/172137/Shannon-Baseband-accept-type-SDP-Attribute-Memory-Corruption.html REF https://semiconductor.samsung.com/processor/modem/

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GitHub PoC

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