CVE-2023-21635: qualcomm, inc. snapdragon Classic Buffer Overflow
CVSS: 7.8v3.1HighModified
Published 04-07-2023Last modified 02-08-2024
Vulnerability summary
CVE-2023-21635 is a high (CVSS 7.8) Classic Buffer Overflow vulnerability in qualcomm, inc. snapdragon. EPSS estimates a 0.11% chance of exploitation in the next 30 days, higher than 1.4% of scored vulnerabilities.
CVSS score
7.8/10
010
High · v3.1 (NVD)EPSS score
0.11%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 04-07-2023PublishedVulnerability first disclosed.
- 02-08-2024Last modifiedVulnerability information updated.
Description
Memory Corruption in Data Network Stack & Connectivity when sim gets detected on telephony.
CVSS metrics
2 scores · 2 sources · 1 versionHigh 7.8Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSources2 sources · 6.7–7.8
- CVE.orgCNA6.7MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HDiffers
EPSS trend
Probability
0.11%
Chance of exploitation in the next 30 days
Percentile
1%
Versus all other CVEs
30-day change
0.00 pp
From 0.11% on 21-09-2026
21-09-202621-10-2026
EPSS score0.11%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.
- CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.
Affected systems
Qualcomm48 products
- aqt1000_firmwarena
- csrb31024_firmwarena
- fastconnect_6200_firmwarena
- fastconnect_6800_firmwarena
- fastconnect_6900_firmwarena
Qualcomm, inc.1 product
- snapdragonAQT1000 | CSRB31024 | FastConnect 6200 | FastConnect 6800 | FastConnect 6900 | QCA6391 | QCA6420 | QCA6426 | QCA6430 | QCA6436 | QCA6564 | QCA6564AU | QCA6574A | QCA6574AU | QCA6595AU | QCA6696 | SA6145P | SA6150P | SA6155P | SA8145P | SA8150P | SA8155P | SA8195P | SD855 | SD865 5G | Snapdragon 855 Mobile Platform | Snapdragon 855+/860 Mobile Platform (SM8150-AC) | Snapdragon 865 5G Mobile Platform | Snapdragon 865+ 5G Mobile Platform (SM8250-AB) | Snapdragon 870 5G Mobile Platform (SM8250-AC) | Snapdragon W5+ Gen 1 Wearable Platform | Snapdragon Wear 4100+ Platform | Snapdragon X55 5G Modem-RF System | Snapdragon XR2 5G Platform | Snapdragon Auto 4G Modem | SW5100 | SW5100P | SXR2130 | WCD9341 | WCD9380 | WCN3610 | WCN3660B | WCN3680B | WCN3980 | WCN3988 | WSA8810 | WSA8815 | WSA8830 | WSA8835
2 vendors · 49 products