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| Vulnerability ID | VCID-qazt-unn4-ubhc |
| Aliases |
CVE-2023-4255
|
| Summary | An out-of-bounds write issue has been discovered in the backspace handling of the checkType() function in etc.c within the W3M application. This vulnerability is triggered by supplying a specially crafted HTML file to the w3m binary. Exploitation of this flaw could lead to application crashes, resulting in a denial of service condition. |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 2.8 |
| Risk | 1.4 |
| Affected and Fixed Packages | Package Details |
| There are no known CWE. |
| System | Score | Found at |
|---|---|---|
| epss | 0.00021 | https://api.first.org/data/v1/epss?cve=CVE-2023-4255 |
| epss | 0.00021 | https://api.first.org/data/v1/epss?cve=CVE-2023-4255 |
| epss | 0.00021 | https://api.first.org/data/v1/epss?cve=CVE-2023-4255 |
| cvssv3.1 | 5.5 | https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
| Percentile | 0.06093 |
| EPSS Score | 0.00021 |
| Published At | June 5, 2026, 12:55 p.m. |
| Date | Actor | Action | Source | VulnerableCode Version |
|---|---|---|---|---|
| 2026-06-04T17:15:02.764928+00:00 | Debian Importer | Import | https://security-tracker.debian.org/tracker/data/json | 38.6.0 |