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CWE-173

Improper Handling of Alternate Encoding

The product does not properly handle when an input uses an alternate encoding that is valid for the control sphere to which the input is being sent.

3
Assigned CVEs
603rd
Commonality Rank
5.4
Avg CVSS
0.0%
In CISA KEV

Volume and Severity of Assigned CVEs Over Time

Volume of CVEs assigned to CWE-173 and their average CVSS base score over time.

Volume of CVEsAvg CVSS Base Score
First CVE
Feb 22, 2023
3 years ago
Most Recent CVE
Dec 4, 2024
597 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 CVEs · Highest risk first

CVEPublishedCVSSRiskKEVExploit
CVE-2023-26303MEDIUM
Denial of service could be caused to markdown-it-py, before v2.2.0, if an attacker was allowed to force null assertions with specially crafted input.
Feb 23, 20235.520NONO
CVE-2023-26302MEDIUM
Denial of service could be caused to the command line interface of markdown-it-py, before v2.2.0, if an attacker was allowed to use invalid UTF-8 characters as input.
Feb 22, 20235.520NONO
CVE-2024-54158MEDIUM
In JetBrains YouTrack before 2024.3.52635 potential spoofing attack was possible via lack of Punycode encoding
Dec 4, 20245.316NONO
View all 3 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
100%
19%
5.0-5.9
16%
6.0-6.9
26%
7.0-7.9
11%
8.0-8.9
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
0 CVEs
0.0% of CVEs· Bottom 1%
Metasploit
0 CVEs
0.0% of CVEs· Bottom 1%
Nuclei
0 CVEs
0.0% of CVEs· Bottom 1%
ExploitDB
0 CVEs
0.0% of CVEs· Bottom 1%

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