CVE-2020-11261: Qualcomm Multiple Chipsets Improper Input Validation Vulnerability
- Is it exploited?
Yes. CISA added it to the Known Exploited Vulnerabilities catalog on 1 Dec 2021, 175 days after the CVE record was published.
- How likely is exploitation in the next 30 days?
- 1.6%
EPSS score, percentile 75.8 of all scored records
- How severe?
- 7.8 High
CVSS v3.1 base score, from CISA's enrichment of the record
- What should I do?
CISA deadline 1 Jun 2022. Apply updates per vendor instructions.
The CVE record links no vendor advisory, patch or mitigation.
- Which versions are affected?
Affected
- APQ8009, APQ8009W, APQ8017, APQ8037, APQ8053, APQ8064AU, APQ8096AU, AQT1000, AR…
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
What to do
Required action, set by CISA
Apply updates per vendor instructions.
CISA due date for this action: 1 June 2022.
Advisories and patches
The CVE record links no vendor advisory, patch or mitigation.
Linked from CISA's catalog entry
Affected products and versions
As listed in the CVE record.
| Status | Versions |
|---|---|
| Affected | APQ8009, APQ8009W, APQ8017, APQ8037, APQ8053, APQ8064AU, APQ8096AU, AQT1000, AR… |
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
About this vulnerability
Memory corruption due to improper check to return error when user application requests memory allocation of a huge size in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables
Summary: CISA's KEV catalog, as of 28 Oct 2026.
- CISA added CVE-2020-11261 to its Known Exploited Vulnerabilities (KEV) catalog on 1 Dec 2021.
- CISA's ransomware flag for this entry is "Unknown": no evidence of ransomware use in the catalog, which is not proof of none.
- The due date CISA sets for the required action is 1 Jun 2022.
- The CVE record was published on 9 Jun 2021, 175 days before it was added to KEV.
- The CVE record carries a CVSS v3.1 base score of 7.8 (High), taken from CISA's enrichment of the record.
- FIRST's EPSS model puts the probability of exploitation in the next 30 days at 1.6% (percentile 75.8), as of 28 Oct 2026.
- CISA's SSVC assessment in the CVE record: exploitation active, automatable no, technical impact total.
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026. About the data.
Description
Memory corruption due to improper check to return error when user application requests memory allocation of a huge size in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
Weakness
- CWE-20: Improper Input Validation
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record and the KEV entry.
Timeline
| Date | Event |
|---|---|
| 9 Jun 2021 | CVE record published |
| 1 Dec 2021 | Added to CISA KEV |
| 1 Jun 2022 | CISA due date for the required action |
| 21 Oct 2025 | CVE record last updated |
References
More exploited Qualcomm vulnerabilities
- CVE-2026-21385: Qualcomm Multiple Chipsets Memory Corruption Vulnerability
- CVE-2025-21479: Qualcomm Multiple Chipsets Incorrect Authorization Vulnerability
- CVE-2025-21480: Qualcomm Multiple Chipsets Incorrect Authorization Vulnerability
- CVE-2025-27038: Qualcomm Multiple Chipsets Use-After-Free Vulnerability
- CVE-2024-43047: Qualcomm Multiple Chipsets Use-After-Free Vulnerability
- CVE-2022-22071: Qualcomm Multiple Chipsets Use-After-Free Vulnerability