CVE-2023-21640: qualcomm, inc. snapdragon Classic Buffer Overflow
CVSS: 7.8v3.1HighModified
Published 04-07-2023Last modified 26-11-2024
Vulnerability summary
CVE-2023-21640 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.
- 26-11-2024Last modifiedVulnerability information updated.
Description
Memory corruption in Linux when the file upload API is called with parameters having large buffer.
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
Qualcomm6 products
- fastconnect_6900_firmwarena
- fastconnect_7800_firmwarena
- snapdragon_8_gen_1_firmwarena
- wcd9380_firmwarena
- wsa8830_firmwarena
Qualcomm, inc.1 product
- snapdragonFastConnect 6900 | FastConnect 7800 | Snapdragon 8 Gen 1 Mobile Platform | WCD9380 | WSA8830 | WSA8835
2 vendors · 7 products