CVE-2026-20525

MEDIUM
Published Oct 5, 2026 Modified Oct 8, 2026 CWE-617

Description

In Modem, there is a possible system crash due to improper input validation. 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: MOLY01870473 / MOLY00814393; Issue ID: MSV-9041.

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CVSS v3.1 Score

5.3
MEDIUM
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploit Prediction

0.0021
Probability of exploitation
0.11%
Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-617 CWE-617

Affected Products

Vendor Product
mediatek mt2716_firmware
mediatek mt2716
mediatek mt6835_firmware
mediatek mt6835
mediatek mt6858_firmware
mediatek mt6858
mediatek mt6878_firmware
mediatek mt6878
mediatek mt6881_firmware
mediatek mt6881
mediatek mt6897_firmware
mediatek mt6897
mediatek mt6899_firmware
mediatek mt6899
mediatek mt6982_firmware
mediatek mt6982
mediatek mt6986_firmware
mediatek mt6986
mediatek mt6988_firmware
mediatek mt6988
mediatek mt6991_firmware
mediatek mt6991
mediatek mt6993_firmware
mediatek mt6993
mediatek mt8668_firmware
mediatek mt8668
mediatek mt8676_firmware
mediatek mt8676
mediatek mt8678_firmware
mediatek mt8678
mediatek mt8755_firmware
mediatek mt8755
mediatek mt8775_firmware
mediatek mt8775
mediatek mt8792_firmware
mediatek mt8792
mediatek mt8793_firmware
mediatek mt8793
mediatek mt8863_firmware
mediatek mt8863
mediatek mt8873_firmware
mediatek mt8873
mediatek mt8883_firmware
mediatek mt8883

References

Frequently Asked Questions

What is CVE-2026-20525? +
In Modem, there is a possible system crash due to improper input validation. 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: MOLY01870473 / MOLY00814393; Issue ID: MSV-9041. It has a CVSS v3.1 base score of 5.3 (MEDIUM).
How severe is CVE-2026-20525? +
CVE-2026-20525 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0021, placing it in the 0th percentile for exploitation probability.
What products are affected by CVE-2026-20525? +
CVE-2026-20525 affects products from mediatek, specifically: mt2716, mt2716_firmware, mt6835, mt6835_firmware, mt6858, mt6858_firmware, mt6878, mt6878_firmware, mt6881, mt6881_firmware, mt6897, mt6897_firmware, mt6899, mt6899_firmware, mt6982, mt6982_firmware, mt6986, mt6986_firmware, mt6988, mt6988_firmware, mt6991, mt6991_firmware, mt6993, mt6993_firmware, mt8668, mt8668_firmware, mt8676, mt8676_firmware, mt8678, mt8678_firmware, mt8755, mt8755_firmware, mt8775, mt8775_firmware, mt8792, mt8792_firmware, mt8793, mt8793_firmware, mt8863, mt8863_firmware, mt8873, mt8873_firmware, mt8883, mt8883_firmware. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2026-20525? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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