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CWE-121

Stack-based Buffer Overflow

A 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).

3,521
Assigned CVEs
22nd
Commonality Rank
8.2
Avg CVSS
0.5%
In CISA KEV

Volume and Severity of Assigned CVEs Over Time

Volume of CVEs assigned to CWE-121 and their average CVSS base score over time.

Volume of CVEsAvg CVSS Base Score
First CVE
Mar 19, 2009
17 years ago
Most Recent CVE
Jul 22, 2026
2 days ago

Top CVEs Assigned This CWE

Top CVEs that have been assigned this CWE. A single CVE can have multiple CWE assignments, though many have just one.

3,521 CVEs · Highest risk first

CVEPublishedCVSSRiskKEVExploit
CVE-2025-22457CRITICAL
A stack-based buffer overflow in Ivanti Connect Secure before version 22.7R2.6, Ivanti Policy Secure before version 22.7R1.4, and Ivanti ZTA Gateways before version 22.8R2.2 allows
Apr 3, 20259.899YESYES
CVE-2025-0282CRITICAL
A stack-based buffer overflow in Ivanti Connect Secure before version 22.7R2.5, Ivanti Policy Secure before version 22.7R1.2, and Ivanti Neurons for ZTA gateways before version 22.
Jan 8, 20259.098YESYES
CVE-2021-20038CRITICAL
A Stack-based buffer overflow vulnerability in SMA100 Apache httpd server's mod_cgi module environment variables allows a remote unauthenticated attacker to potentially execute cod
Dec 8, 20219.898YESYES
CVE-2009-0927HIGH
Stack-based buffer overflow in Adobe Reader and Adobe Acrobat 9 before 9.1, 8 before 8.1.3 , and 7 before 7.1.1 allows remote attackers to execute arbitrary code via a crafted argu
Mar 19, 20098.898YESYES
CVE-2008-0015HIGH
Stack-based buffer overflow in the CComVariant::ReadFromStream function in the Active Template Library (ATL), as used in the MPEG2TuneRequest ActiveX control in msvidctl.dll in Dir
Jul 7, 20098.897YESYES
CVE-2022-20699CRITICAL
Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code Elevate pr
Feb 10, 20229.895YESYES
CVE-2020-5735HIGH
Amcrest cameras and NVR are vulnerable to a stack-based buffer overflow over port 37777. An authenticated remote attacker can abuse this issue to crash the device and possibly exec
Apr 8, 20208.888YESYES
CVE-2016-6563CRITICAL
Processing malformed SOAP messages when performing the HNAP Login action causes a buffer overflow in the stack in some D-Link DIR routers. The vulnerable XML fields within the SOAP
Jul 13, 20189.887NOYES
CVE-2025-20352HIGH
A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS Software and Cisco IOS XE Software could allow the following: An authenticated, remote
Sep 24, 20257.785YESNO
CVE-2025-32756CRITICAL
A stack-based buffer overflow vulnerability [CWE-121] vulnerability in Fortinet FortiCamera 2.1.0 through 2.1.3, FortiCamera 2.0 all versions, FortiCamera 1.1 all versions, FortiMa
May 13, 20259.885YESNO
View all 3,521 CVEs →

CVE Severity & Scoring

This CWEGlobal (All CVEs)
0.0-0.9
1.0-1.9
2.0-2.9
3.0-3.9
10%
4.0-4.9
19%
5.0-5.9
16%
6.0-6.9
32%
26%
7.0-7.9
32%
11%
8.0-8.9
24%
14%
9.0-10.0
unknown
CVSS Score Range

Exploit Exposure

Exploit activity across CVEs assigned to this CWE, including CVEs that carry other CWE assignments.

CISA KEV
19 CVEs
0.5% of CVEs· 85th percentile
Metasploit
79 CVEs
2.2% of CVEs· 93rd percentile
Nuclei
3 CVEs
0.1% of CVEs· 77th percentile
ExploitDB
25 CVEs
0.7% of CVEs· 78th percentile

Social Chatter

Social posts that mention CVE IDs assigned to this CWE. This is assigned-CVE activity, not mentions of the CWE label itself.

Media Mentions

Media articles that mention CVE IDs assigned to this CWE. This is assigned-CVE coverage, not mentions of the CWE label itself.

Top Affected Vendors

Top Affected Products