In ims service, there is a possible system crash due to incorrect error handling. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01394606; Issue ID: MSV-2739.
Conclusion & alert: CVE-2025-20678 is rated Low Risk (36.4/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.11%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-03-29 | 0.04% | 0.11% | +0.07% |
| 2 | 2026-02-18 | 0.15% | 0.04% | -0.11% |
| 3 | 2026-02-05 | — | 0.15% | — |
Full EPSS history (9 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.5 | 3.1 | MEDIUM |
|
2.8 | 3.6 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| Vendor | Product | Version | Raw 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 | nr17 | — | cpe:2.3:o:mediatek:nr17:-:*:*:*:*:*:*:* |
| mediatek | nr17r | — | cpe:2.3:o:mediatek:nr17r:-:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://corp.mediatek.com/product-security-bulletin/June-2025 | Vendor Advisory |