CVE-2022-22281: sonicwall netextender Stack-based Buffer Overflow
CVSS: 7.8v3.1HighModified
Published 13-05-2022Last modified 03-08-2024
Vulnerability summary
CVE-2022-22281 is a high (CVSS 7.8) Stack-based Buffer Overflow vulnerability in sonicwall netextender. EPSS estimates a 0.51% chance of exploitation in the next 30 days, higher than 41.8% of scored vulnerabilities.
CVSS score
7.8/10
010
High · v3.1 (NVD)EPSS score
0.51%
0%100%
Low · +0.02 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 13-05-2022PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
A buffer overflow vulnerability in the SonicWall SSL-VPN NetExtender Windows Client (32 and 64 bit) in 10.2.322 and earlier versions, allows an attacker to potentially execute arbitrary code in the host windows operating system.
CVSS metrics
2 scores · 1 source · 2 versionsHigh 7.8Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesSingle source
High 7.2Preferred score · NVD (NIST)
AV:L/AC:L/Au:N/C:C/I:C/A:CSourcesSingle source
EPSS trend
Probability
0.51%
Chance of exploitation in the next 30 days
Percentile
42%
Versus all other CVEs
30-day change
+0.02 pp
From 0.49% on 19-09-2026
19-09-202619-10-2026
EPSS score0.51%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-121Stack-based Buffer OverflowA stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
- 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.
Affected systems
Sonicwall2 products
- netextender≤ 10.2.322
- sonicwall netextender windows (32 and 64 bit) client10.2.322 and earlier versions
1 vendor · 2 products