OSV-2025-275 UNKNOWN READ in void std::__1::vector<unsigned char, std::__1::allocator<unsigned char>>::__cons
An unknown read vulnerability in the Poco library's NTLM credential parsing can cause a crash, potentially leading to denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not stated
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is OSV-2025-275?
OSV-2025-275 is a memory corruption vulnerability in poco, published on 14 Apr 2025. It can be exploited over the network, with no action from the victim.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=410115359
Crash type: UNKNOWN READ
Crash state:
void std::__1::vector<unsigned char, std::__1::allocator<unsigned char>>::__cons
Poco::Net::NTLMCredentials::parseChallengeMessage
Poco::Net::HTTPNTLMCredentials::createNTLMMessage
Which versions are affected by OSV-2025-275?
1 open source package ship an affected version, including poco.
| Package | Affected | Fixed in |
|---|---|---|
poco OSS-Fuzz | All versions | None |
How do I fix OSV-2025-275?
No fix has been published for OSV-2025-275 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is OSV-2025-275 being exploited?
There is no known exploitation of OSV-2025-275 in the wild and no public exploit code.