CVE-2025-21421
Buffer Over-read in Display
7.8 High
Memory corruption while processing escape code in API.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
0.11%Up 0.1 points since Apr 7, 2025
What each source reports
CVE List Score used
Buffer Over-read in Display
Memory corruption while processing escape code in API.
- Record
CVE-2025-21421- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-126
- Updated
- 2026-11-02
EUVDEUVD-2025-10005
Memory corruption while processing escape code in API.
- Record
EUVD-2025-10005- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-vq9p-4m2j-2749
Memory corruption while processing escape code in API.
Memory corruption while processing escape code in API.
- Record
GHSA-vq9p-4m2j-2749- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-126
- Updated
- 2026-11-02
NVD
Memory corruption while processing escape code in API.
- Record
CVE-2025-21421- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-126
- Updated
- 2026-11-02
Affected products
- qualcomm aqt1000 firmware
- qualcomm fastconnect 6200 firmware
- qualcomm fastconnect 6700 firmware
- qualcomm fastconnect 6800 firmware
- qualcomm fastconnect 6900 firmware
- qualcomm fastconnect 7800 firmware
- qualcomm qca6391 firmware
- qualcomm qca6420 firmware
- qualcomm qca6430 firmware
- qualcomm qcm5430 firmware
- qualcomm qcm6490 firmware
- qualcomm qcs5430 firmware
Show 34 moreShow less
- qualcomm qcs6490 firmware
- qualcomm sc8180x\+sdx55 firmware
- qualcomm sc8380xp firmware
- qualcomm sm6250 firmware
- qualcomm snapdragon 7c\+ gen 3 compute firmware
- qualcomm snapdragon 7c compute platform \(sc7180-ac\) firmware
- qualcomm snapdragon 7c gen 2 compute platform \(sc7180-ad\) \"rennell pro\" firmware
- qualcomm snapdragon 8c compute platform \(sc8180x-ad\) firmware
- qualcomm snapdragon 8c compute platform \(sc8180xp-ad\) firmware
- qualcomm snapdragon 8cx compute platform \(sc8180x-aa\) firmware
- qualcomm snapdragon 8cx compute platform \(sc8180x-ab\) firmware
- qualcomm snapdragon 8cx compute platform \(sc8180xp-ac\) firmware
- qualcomm snapdragon 8cx compute platform \(sc8180xp-af\) firmware
- qualcomm snapdragon 8cx gen 2 5g compute platform \(sc8180x-ac\) firmware
- qualcomm snapdragon 8cx gen 2 5g compute platform \(sc8180x-af\) firmware
- qualcomm snapdragon 8cx gen 2 5g compute platform \(sc8180xp-aa\) firmware
- qualcomm snapdragon 8cx gen 2 5g compute platform \(sc8180xp-ab\) firmware
- qualcomm snapdragon 8cx gen 3 compute platform \(sc8280xp-ab\) firmware
- qualcomm snapdragon 8cx gen 3 compute platform \(sc8280xp-bb\) firmware
- qualcomm video collaboration vc3 platform firmware
- qualcomm wcd9340 firmware
- qualcomm wcd9341 firmware
- qualcomm wcd9370 firmware
- qualcomm wcd9375 firmware
- qualcomm wcd9380 firmware
- qualcomm wcd9385 firmware
- qualcomm wsa8810 firmware
- qualcomm wsa8815 firmware
- qualcomm wsa8830 firmware
- qualcomm wsa8835 firmware
- qualcomm wsa8840 firmware
- qualcomm wsa8845 firmware
- qualcomm wsa8845h firmware
- qualcomm, inc. snapdragon
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-21421 is a high vulnerability (CVSS 7.8) in Qualcomm Aqt1000 Firmware, published April 7, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.11%, the 1st percentile. No source names a fixed version.