In Modem 4G RRC, there is a possible system crash due to improper input validation.
In Modem 4G RRC, there is a possible system crash due to improper input validation. This could lead to remote denial of service, when concatenating improper SIB12 (CMAS message), with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY00867883; Issue ID: ALPS07274118.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for help- Published
- Nov 8, 2022
- Updated
- Jun 17, 2026
- EPSS
- 1.1% · 65th percentile
- CWE
- CWE-617
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Report tools
Action score
30
Monitor
Low priority for now.
- CVSS
- 30 / 40 · 7.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 1.1%
CISA SSVC decision
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| mediatek | lr12a | cpe:2.3:o:mediatek:lr12a |
| mediatek | lr13 | cpe:2.3:o:mediatek:lr13 |
| mediatek | nr15 | cpe:2.3:o:mediatek:nr15 |
| mediatek | nr16 | cpe:2.3:o:mediatek:nr16 |
| mediatek | mt2731 | cpe:2.3:h:mediatek:mt2731 |
| mediatek | mt2735 | cpe:2.3:h:mediatek:mt2735 |
| mediatek | mt6297 | cpe:2.3:h:mediatek:mt6297 |
| mediatek | mt6725 | cpe:2.3:h:mediatek:mt6725 |
| mediatek | mt6739 | cpe:2.3:h:mediatek:mt6739 |
| mediatek | mt6761 | cpe:2.3:h:mediatek:mt6761 |
| mediatek | mt6762 | cpe:2.3:h:mediatek:mt6762 |
| mediatek | mt6762d | cpe:2.3:h:mediatek:mt6762d |
and 44 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- mediatek lr12aall versions
- mediatek lr13all versions
- mediatek nr15all versions
- mediatek nr16all versions
Versions reported by the vendor
Affected version ranges reported by the assigning authority (MediaTek). Independent of NVD's CPE analysis and usually ahead of it.
MediaTek, Inc. MT2731, MT2735, MT6297, MT6725, MT6739, MT6761, MT6762, MT6762D, MT6762M, MT6763, MT6765, MT6765T, MT6767, MT6768, MT6769, MT6769T, MT6769Z, MT6771, MT6779, MT6781, MT6783, MT6785, MT6785T, MT6789, MT
- Modem LR12A, LR13, NR15, NR16affected
Same product
mediatek: all recordsOther highest-scoring records for the same primary product.
- CVE-2024-20154In Modem, there is a possible out of bounds write due to a missing bounds check.36Monitor
- CVE-2024-20039In modem protocol, there is a possible out of bounds write due to a missing bounds check.35Monitor
- CVE-2025-20727In Modem, there is a possible out of bounds write due to a heap buffer overflow.32Monitor
- CVE-2026-20434In Modem, there is a possible out of bounds write due to a missing bounds check.30Monitor
- CVE-2025-20726In Modem, there is a possible out of bounds write due to an incorrect bounds check.30Monitor
- CVE-2025-20725In ims service, there is a possible out of bounds write due to a missing bounds check.30Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
CWE-617 · Reachable AssertionCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
Vendor advisories and official records. Exploit/PoC links are deliberately left out.