CVE-2020-7039

Libslirp vulnerability

CVSS

5.6

EPSS

3.6%

EPSS pct

88th

Exploited

No known

tcp_emu in tcp_subr.c in libslirp 4.1.0, as used in QEMU 4.2.0, mismanages memory, as demonstrated by IRC DCC commands in EMU_IRC. This can cause a heap-based buffer overflow or other out-of-bounds access which can lead to a DoS or potential execute arbitrary code.

Affected vendor

Libslirp Project

Affected product

Libslirp

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Weakness type (CWE)

CWE-787 — Out-of-bounds Write

Published

2020-01-16

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, high attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to low impact to confidentiality, low impact to integrity, low impact to availability.

Its EPSS score of 3.6% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 88% of all scored CVEs.

Check your external exposure to CVE-2020-7039

Confirm whether Libslirp Project Libslirp is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2020-7039.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-7039

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2020-7039 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

Run a free external exposure scan

Are you exposed to CVE-2020-7039?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2020-7039.

Start free scan

No credit card. Agentless.

Related vulnerabilities

MEDIUM

CVE-2023-43494

Jenkins vulnerability

MEDIUM

CVE-2023-5143

Dar 7000 Firmware vulnerability

MEDIUM

CVE-2023-5144

Dar 7000 Firmware vulnerability