CVE-2020-8608

MEDIUMNVD 5.65.6—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.6 under NVD CVSS v3. EPSS exploit probability: 2.5%, top 17% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Trending — 3 sources updated this week
5.6
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 2%CVSS: 5.6Exploit: NoneExposed: 0

A fix is available — apply it.

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.

CVSS v3
5.6
EG Score
5.6(medium)
EG Risk
31(Track)
EG Risk 31/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity56% × 45%
Exploitation2% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
82.9%
KEV
Not listed

Published

February 6, 2020

Last Modified

November 21, 2024

References (24)

Vendor Advisories for CVE-2020-8608(17)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(19)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuqemu-utils (1:2.5+dfsg-5ubuntu10.43) @ xenial2026-05-27ubuntu
ubuntuqemu-utils (1:2.11+dfsg-1ubuntu7.42+esm2) @ bionic2026-05-27ubuntu
ubuntuslirp (1:1.0.17-8ubuntu16.04.1) @ xenial2026-05-27ubuntu
redhatvirt:rhel-8000020200526192422.f8e95b4e2020-07-21redhat
redhatqemu-kvm-10:1.5.3-160.el7_6.72020-07-07redhat
redhatvirt:rhel-8010020200526033036.c27ad7f82020-06-30redhat
redhatvirt:rhel-8020020200601195459.4cda2c842020-06-30redhat
redhatqemu-kvm-rhev-10:2.12.0-18.el7_6.112020-06-24redhat
redhatqemu-kvm-2:0.12.1.2-2.506.el6_10.72020-04-08redhat
redhatcontainer-tools:rhel8-8010120200326094405.f8993c422020-04-07redhat
redhatqemu-kvm-10:1.5.3-167.el7_7.62020-04-07redhat
redhatqemu-kvm-ma-10:2.12.0-33.el7_7.32020-04-07redhat
redhatqemu-kvm-rhev-10:2.12.0-33.el7_7.102020-04-02redhat
redhatqemu-kvm-rhev-10:2.12.0-44.el7_8.12020-04-02redhat
redhatvirt-devel:8.1-8010120200304224358.5db1954d2020-04-01redhat
redhatqemu-kvm-ma-10:2.12.0-44.el7_8.12020-03-31redhat
redhatqemu-kvm-10:1.5.3-173.el7_8.12020-03-31redhat
redhatslirp4netns-0:0.3.0-8.el7_72020-03-17redhat
redhattoolbox-0:0.0.6-1.rhaos4.3.el82020-02-24redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(3)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 14× in last 7d / 52× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 105 total refreshes for this CVE.

  1. 2026-07-23 01:55 UTCEG score recompute
  2. 2026-07-22 22:41 UTCEG score recompute
  3. 2026-07-22 14:05 UTCEPSS rescore
  4. 2026-07-21 15:22 UTCEPSS rescore
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  6. 2026-07-20 17:04 UTCEPSS rescore
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  8. 2026-07-19 19:48 UTCOSV refresh
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  1. 2026-07-09 19:07 UTCEPSS rescore
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  41. 2026-06-14 09:13 UTCOSV refresh
  42. 2026-06-13 22:58 UTCEPSS rescore
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  44. 2026-06-12 23:10 UTCEPSS rescore
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  46. 2026-06-11 13:58 UTCEPSS rescore
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  73. 2026-05-27 13:39 UTCEPSS rescore
  74. 2026-05-27 08:11 UTCEG score recompute
  75. 2026-05-27 08:11 UTCVendor advisory

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Frequently asked(5)

What is CVE-2020-8608?
CVE-2020-8608 is a medium vulnerability published on February 6, 2020. 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.
When was CVE-2020-8608 disclosed?
CVE-2020-8608 was first published in the National Vulnerability Database on February 6, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-8608 actively exploited?
CVE-2020-8608 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 82.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2020-8608?
CVE-2020-8608 has a CVSS v3 base score of 5.6 (NVD).
How do I remediate CVE-2020-8608?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-8608, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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