CVE-2020-27618

What it is

The iconv function in the GNU C Library (aka glibc or libc6) 2.32 and earlier, when processing invalid multi-byte input sequences in IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 encodings, fails to advance the input state, which could lead to an infinite loop in applications, resulting in a denial of service, a different vulnerability from CVE-2016-10228.

At a glance

Exploitability

Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.

Exploit odds

0.9% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2021-02-26 23:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-10-14 10:17 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.9% in the next 30 days (EPSS).
• Severity: 5.5 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2021-02-26 23:15 UTC

Last modified

2026-10-14 10:17 UTC

Exploit probability

0.9% · EPSS, next 30 days

Weakness

CWE-835

Record status

Modified

Affected

• Gnu Glibc ≤ 2.32
• Netapp Ontap Select Deploy Administration Utility
• Netapp a250 Firmware
• Netapp 500f Firmware
• Netapp h410c Firmware
• Netapp h300s Firmware
• Netapp h500s Firmware
• Netapp h700s Firmware

Attack profile CVSS 3.1 · 5.5

Attack vector

Local

Complexity

Low

Privileges needed

Low

User interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2020-27618.md and follow it. Check whether this project is affected by CVE-2020-27618. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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