CVE-2026-75538
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
A Signed Length Overflow in Erlang/OTP's inet TCP Driver Overflows the Receive Buffer Into BEAM VM Memory From an Unauthenticated Peer
An attacker that connects to an open Erlang TCP port that uses the inet driver with {packet,4} mode can use a signed overflow in an incorrect packet length calculation to overflow the receive buffer into the VM allocator area and beyond up to about 2 GB. This would easily trash the allocated block's allocator metadata footer, and the next block, if any, and most likely cause the BEAM VM to crash. Utilizing this with precision enough to achieve Remote Code Execution would be extremely unfeasible. This issue affects OTP from OTP 17.0 before OTP 27.3.4.17, from OTP 28.0 before OTP 28.5.0.6, and from OTP 29.0 before OTP 29.0.6, corresponding to erts from 6.0 before 15.2.7.13, from 16.0 before 16.4.0.6, and from 17.0 before 17.0.6. Whether OTP before OTP 17.0, corresponding to erts before 6.0, is affected is unknown.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
OTP
- Vendor
- Erlang
- Product
- OTP
- Platforms
- Unknown
- Default status
unaffected- Package
- otp
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 0 | unknown | otp | 17.0 | Unavailable | None listed |
| 17.0 | affected | otp | 27.3.4.17 | Unavailable | None listed |
| 28.0 | affected | otp | 28.5.0.6 | Unavailable | None listed |
| 29.0 | affected | otp | 29.0.6 | Unavailable | None listed |
OTP
- Vendor
- Erlang
- Product
- OTP
- Platforms
- Unknown
- Default status
unaffected- Package
- erts
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 0 | unknown | otp | 6.0 | Unavailable | None listed |
| 6.0 | affected | otp | 15.2.7.13 | Unavailable | None listed |
| 16.0 | affected | otp | 16.4.0.6 | Unavailable | None listed |
| 17.0 | affected | otp | 17.0.6 | Unavailable | None listed |
OTP
- Vendor
- Erlang
- Product
- OTP
- Platforms
- Unknown
- Default status
unaffected- Package
- erlang/otp
- Package collection
- https://github.com
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 84adefa331c4159d432d22840663c38f155cd4c1 | affected | git | 08e8efdba8500d2d6f54c6b1de1492b228017c9b | Unavailable | None listed |