6.9
Medium
CVE-2026-25210 In libexpat before 2.7.4, the doContent function does not properly determine the buffer size bufSize because there is no…
Description
In libexpat before 2.7.4, the doContent function does not properly determine the buffer size bufSize because there is no integer overflow check for tag buffer reallocation.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| libexpat 2.7 | earliest → < 2.7.4 | 2.7.4 |
| RUGGEDCOM RST2428P 4.0 | earliest → < 4.0 | 4.0 |
Other CVEs of libexpat
The 26 CVEs of libexpat →
CVE-2026-76957
libexpat before 2.8.4 lacks handler call depth tracking with custom encoding callbacks
4.9
Medium
CVE-2026-76956
In libexpat 2.8.2 and 2.8.3 before 2.8.4, misinterpretation of getentropy's return code leads to insufficient entropy,…
5.9
Medium
CVE-2026-66046
Expat through 2.8.3 contains a denial of service vulnerability caused by quadratic algorithmic complexity in the…
8.7
High
CVE-2026-72522
libexpat before 2.8.3 has an out-of-bounds read and resultant infinite loop because low surrogates are treated the…
6.2
Medium