CVE-2020-20703 Memory corruption in n/a

Critical 9.8 Published 20 Jun 2023 Updated 10 Dec 2024

A buffer overflow in Vim allows remote attackers to execute arbitrary code via a crafted operand parameter.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2020-20703?

CVE-2020-20703 is a critical memory corruption vulnerability in Vim Vim, published on 20 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Buffer Overflow vulnerability in VIM v.8.1.2135 allows a remote attacker to execute arbitrary code via the operand parameter.

Weakness: CWE-120

Which versions are affected by CVE-2020-20703?

It affects 1 product.

Products include Vim Vim.

How do I fix CVE-2020-20703?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2020-20703 being exploited?

There is no known exploitation of CVE-2020-20703 in the wild and no public exploit code.

All Vim Vim vulnerabilities

Sources

Also known as DEBIAN-CVE-2020-20703, GHSA-hxgq-2x58-pgpq.