MEDIUM
CVE-2020-8608
CWE-120Published: February 6, 2020· Updated: Jun 17, 2026
5.6
CVSS v3.1
Official Description
In libslirp 4.1.0, as used in QEMU 4.2.0, tcp_subr.c misuses snprintf return values, leading to a buffer overflow in later code.
Technical Analysis
CVE-2020-8608 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityHigh
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityLow
AvailabilityLow
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Affected Vendors & Products
Debian1 product(s)
debian linux
libslirp_project1 product(s)
libslirp
openSUSE1 product(s)
leap
Source: NVD CPE · 5 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
ADVISORYhttps://usn.ubuntu.com/4283-1/
ADVISORYhttps://usn.ubuntu.com/4283-1/
All References (24)
→
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00007.htmlMailing List · Third Party Advisory
→
https://gitlab.freedesktop.org/slirp/libslirp/-/tags/v4.1.0Release Notes · Third Party Advisory
→
https://gitlab.freedesktop.org/slirp/libslirp/commit/68ccb8021a838066f0951d4b2817eb6b6f10a843Patch · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2020/03/msg00015.htmlThird Party Advisory
→
https://lists.debian.org/debian-lts-announce/2020/03/msg00017.htmlThird Party Advisory
→
https://lists.debian.org/debian-lts-announce/2020/07/msg00020.htmlMailing List · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2021/02/msg00012.htmlMailing List · Third Party Advisory
→
https://security.gentoo.org/glsa/202003-66Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20201001-0002/Third Party Advisory
→
https://usn.ubuntu.com/4283-1/Third Party Advisory
→
https://www.debian.org/security/2020/dsa-4733Third Party Advisory
→
https://www.openwall.com/lists/oss-security/2020/02/06/2Mailing List · Patch · Third Party Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00007.htmlMailing List · Third Party Advisory
→
https://gitlab.freedesktop.org/slirp/libslirp/-/tags/v4.1.0Release Notes · Third Party Advisory
→
https://gitlab.freedesktop.org/slirp/libslirp/commit/68ccb8021a838066f0951d4b2817eb6b6f10a843Patch · Third Party Advisory
Quick Facts
CVE IDCVE-2020-8608
CVSS Score5.6 / 10
SeverityMEDIUM
WeaknessCWE-120
CISA KEVNo
Affected3 vendor(s)
PublishedFeb 6, 2020
Related CVEs (CWE-120)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2020-8608 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.