CVE-2026-75820
Integer Truncation Leading to Heap Corruption in GNU Aspell
- State
- Published
- Severity
- 1.8 Low
- Published
- Oct 6, 2026
- Updated
- Oct 6, 2026
- Reserved
- Aug 18, 2026
Description
GNU Aspell contains an integer truncation vulnerability in the WritableDict::add() function in modules/speller/default/writable.cpp. When loading a personal wordlist, the word length is stored as a single byte, causing truncation for words whose length is a multiple of 256. This leads to heap corruption. An attacker can exploit this by convincing a user to run aspell with a crafted personal wordlist containing such a word, resulting in denial of service.
This issue was fixed in commit 782ce94e4dc71eaec4ee1bd945eb3b9c47c5387d which will be released in version 0.60.8.3.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 1.8 Low | CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:L/SA:N | CERT-PL |
Weaknesses
- CWE-190 Integer Overflow or Wraparound
Affected Products
| Product | Versions |
|---|---|
AspellGNU |
|
References
- https://cert.pl/en/posts/2026/10/CVE-2026-75818third-party-advisory
- http://aspell.net/product
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