CVE-2021-35111: qualcomm, inc. snapdragon connectivity, snapdragon mobile Improper Input Validation
CVSS: 7.5v3.1HighModified
Published 14-06-2022Last modified 04-08-2024
Vulnerability summary
CVE-2021-35111 is a high (CVSS 7.5) Improper Input Validation vulnerability in qualcomm, inc. snapdragon connectivity, snapdragon mobile. EPSS estimates a 0.46% chance of exploitation in the next 30 days, higher than 38.6% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.1 (CVE.org)EPSS score
0.46%
0%100%
Low · +0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 14-06-2022PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
Improper validation of tag id while RRC sending tag id to MAC can lead to TOCTOU race condition in Snapdragon Connectivity, Snapdragon Mobile
CVSS metrics
3 scores · 2 sources · 2 versionsHigh 7.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSources2 sources · 5.9–7.5
- NVDNIST5.9MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:HDiffers
High 7.1Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:N/A:CSourcesSingle source
EPSS trend
Probability
0.46%
Chance of exploitation in the next 30 days
Percentile
39%
Versus all other CVEs
30-day change
+0.01 pp
From 0.45% on 20-09-2026
20-09-202620-10-2026
EPSS score0.46%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
- CWE-367Time-of-check Time-of-use (TOCTOU) Race ConditionThe product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check.
Affected systems
Qualcomm38 products
Qualcomm, inc.1 product
- snapdragon connectivity, snapdragon mobileAR8035, QCA6390, QCA6391, QCA8081, QCA8337, SD 8 Gen1 5G, SD765, SD765G, SD768G, SD778G, SD865 5G, SD870, SD888 5G, SDX55, SDX55M, SDX65, SM7250P, SM7450, SM8475, SM8475P, WCD9341, WCD9370, WCD9375, WCD9380, WCD9385, WCN3991, WCN3998, WCN6750, WCN6850, WCN6851, WCN6855, WCN6856, WCN7851, WSA8810, WSA8815, WSA8830, WSA8832, WSA8835
2 vendors · 39 products
References
1 links- www.qualcomm.com/company/product-security/bulletins/june-2022-bulletinX Refsource CONFIRMVendor Advisory