CVE-2025-21443

CVE-2025-21443 is a high-severity vulnerability in Qualcomm Qam8255p Firmware with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-120.

Key facts

• Severity: High (CVSS 3.x base score 7.8)
• EPSS exploit prediction: 0% (1st percentile)
• Actively exploited: Not listed in CISA KEV
• EU (EUVD) id: EUVD-2025-9989
• Weakness: CWE-120
• Affected product: Qualcomm Qam8255p Firmware
• Published: 2025-04-07
• Last modified: 2026-06-17

Description

Memory corruption while processing message content in eAVB.

Frequently asked questions

What is CVE-2025-21443?

Memory corruption while processing message content in eAVB.

How severe is CVE-2025-21443?

CVE-2025-21443 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-21443 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-21443?

CVE-2025-21443 primarily affects Qualcomm Qam8255p Firmware. In total, 36 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-21443?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-21443 have an EU (EUVD) identifier?

Yes. CVE-2025-21443 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-9989.

When was CVE-2025-21443 published?

CVE-2025-21443 was published on 2025-04-07 and last updated on 2026-06-17.

References

• https://docs.qualcomm.com/product/publicresources/securitybulletin/april-2025-bulletin.html

Affected products (36)

• cpe:2.3:o:qualcomm:qam8255p_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qam8295p_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qam8620p_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qam8650p_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qam8775p_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qamsrv1h_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qamsrv1m_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qca6574a_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qca6574au_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qca6595_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qca6595au_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qca6688aq_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qca6696_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qca6698aq_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:sa6145p_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:sa6150p_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:sa6155_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:sa6155p_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:sa7255p_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:sa7775p_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:sa8145p_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:sa8150p_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:sa8155_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:sa8155p_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:sa8195p_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:sa8255p_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:sa8295p_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:sa8540p_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:sa8620p_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:sa8650p_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:sa8770p_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:sa8775p_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:sa9000p_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:srv1h_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:srv1l_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:srv1m_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Qualcomm Qam8255p Firmware

• CVE-2025-21483 — Critical (CVSS 9.8): Memory corruption when the UE receives an RTP packet from the network, during the reassembly of NALUs.
• CVE-2024-45569 — Critical (CVSS 9.8): Memory corruption while parsing the ML IE due to invalid frame content.
• CVE-2023-43553 — Critical (CVSS 9.8): Memory corruption while parsing beacon/probe response frame when AP sends more supported links in MLIE.
• CVE-2023-43552 — Critical (CVSS 9.8): Memory corruption while processing MBSSID beacon containing several subelement IE.
• CVE-2023-33045 — Critical (CVSS 9.8): Memory corruption in WLAN Firmware while parsing a NAN management frame carrying a S3 attribute.
• CVE-2023-33028 — Critical (CVSS 9.8): Memory corruption in WLAN Firmware while doing a memory copy of pmk cache.

All CVEs affecting Qualcomm Qam8255p Firmware →

Other CWE-120 (Classic Buffer Overflow) vulnerabilities

• CVE-2025-48611 — Critical (CVSS 10.0): In DeviceId of DeviceId.java, there is a possible desync in persistence due to a missing bounds check. This could lead…
• CVE-2026-24823 — Critical (CVSS 10.0): Out-of-bounds Write, Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in FASTSHIFT…
• CVE-2026-24810 — Critical (CVSS 10.0): Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in rethinkdb (src/cjson modules).…
• CVE-2026-24800 — Critical (CVSS 10.0): Out-of-bounds Write, Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in tildearrow…
• CVE-2025-9962 — Critical (CVSS 10.0): A buffer overflow vulnerability in Novakon P series allows attackers to gain root permission without prior…
• CVE-2010-10016 — Critical (CVSS 10.0): BS.Player version 2.57 (build 1051) contains a vulnerability in its playlist import functionality. When processing .m3u…

Browse all CWE-120 (Classic Buffer Overflow) vulnerabilities →