OSV-2026-1033 Heap-buffer-overflow in ppp_tx_frame
A heap-buffer-overflow in the PPP transmission function allows remote attackers to cause denial of service or potentially execute code via crafted network packets.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is OSV-2026-1033?
OSV-2026-1033 is a memory corruption vulnerability in mongoose, published on 6 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=531087610
Crash type: Heap-buffer-overflow READ {*}
Crash state:
ppp_tx_frame
ppp_rx
mg_tcpip_rx
Which versions are affected by OSV-2026-1033?
1 open source package ship an affected version, including mongoose.
| Package | Affected | Fixed in |
|---|---|---|
mongoose OSS-Fuzz | All versions | None |
How do I fix OSV-2026-1033?
No fix has been published for OSV-2026-1033 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-2026-1033 being exploited?
There is no known exploitation of OSV-2026-1033 in the wild and no public exploit code.