In QEMU through 5.0.0, an assertion failure can occur in the network packet processing. This issue affects the e1000e and vmxnet3 network devices. A malicious guest user/process could use this flaw to abort the QEMU process on the host, resulting in a denial of service condition in net_tx_pkt_add_raw_fragment in hw/net/net_tx_pkt.c.
CVE-2020-16092
Score 3.8 from GitHub Security Advisory published 2022-05-24. NVD baseline CVSS 3.8; sources differ by 0.0.
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 3.8
- EG Score
- 3.8(medium)
- EG Risk
- 22(Track)EG Risk 22/100SSVC: 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 computedSeverity38% × 45%Exploitation0% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 31%
- KEV
- Not listed
Published
August 11, 2020
Last Modified
November 21, 2024
References (16)
- cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2020-10/msg00024.html
- cve@mitrehttp://www.openwall.com/lists/oss-security/2020/08/10/1
- cve@mitrehttps://lists.debian.org/debian-lts-announce/2020/09/msg00013.html
- cve@mitrehttps://lists.nongnu.org/archive/html/qemu-devel/2020-07/msg07563.html
- cve@mitrehttps://security.gentoo.org/glsa/202208-27
- cve@mitrehttps://security.netapp.com/advisory/ntap-20200821-0006/
- cve@mitrehttps://usn.ubuntu.com/4467-1/
- cve@mitrehttps://www.debian.org/security/2020/dsa-4760
- af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00024.html
- af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2020/08/10/1
- af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2020/09/msg00013.html
- af854a3a-2127-422b-91ae-364da2661108https://lists.nongnu.org/archive/html/qemu-devel/2020-07/msg07563.html
- af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202208-27
- af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20200821-0006/
- af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/4467-1/
Vendor Advisories for CVE-2020-16092(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Patch Availability(6)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | qemu-utils (1:2.11+dfsg-1ubuntu7.31) @ bionic | 2026-05-27 | ubuntu |
| redhat | virt:rhel-8040020210317013608.9f9e2e7e | 2021-05-18 | redhat |
| redhat | qemu-kvm-rhev-10:2.12.0-48.el7_9.2 | 2021-03-18 | redhat |
| redhat | qemu-kvm-ma-10:2.12.0-48.el7_9.2 | 2021-02-02 | redhat |
| redhat | qemu-kvm-10:1.5.3-175.el7_9.3 | 2021-02-02 | redhat |
| redhat | virt-devel:8.2-8020120201106174547.863bb0db | 2020-11-18 | redhat |
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.
Affected Packages
(6 across 6 ecosystems)
Debian:10(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| qemu | 1:3.1+dfsg-8 ... 1:3.1+dfsg-8~deb10u1 (8 versions) | 1:3.1+dfsg-8+deb10u8 | — |
Debian:11(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| qemu | — | 1:5.1+dfsg-1 | — |
Debian:12(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| qemu | — | 1:5.1+dfsg-1 | — |
Debian:13(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| qemu | — | 1:5.1+dfsg-1 | — |
Debian:14(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| qemu | — | 1:5.1+dfsg-1 | — |
Debian:9(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| qemu | 1:2.8+dfsg-6 ... 1:2.8+dfsg-6+deb9u9 (11 versions) | 1:2.8+dfsg-6+deb9u11 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(7)
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.
- Microsoft MSRCCVE-2020-160922020-08-18
In QEMU through 5.0.0 an assertion failure can occur in the network packet processing. This issue affects the e1000e and vmxnet3 network devices. A malicious guest user/process could use this flaw to abort the QEMU process on the host resulting in a denial of service condition in net_tx_pkt_add_raw_fragment in hw/net/net_tx_pkt.c.
- Red HatRHSA-2020:5111LOW2020-07-27
RHSA-2020:5111 — Low
- Red HatRHSA-2021:0346LOW2020-07-27
RHSA-2021:0346 — Low
- Red HatRHSA-2021:0347LOW2020-07-27
RHSA-2021:0347 — Low
- Red HatRHSA-2021:0459LOW2020-07-27
RHSA-2021:0459 — Low
- Red HatRHSA-2021:0934LOW2020-07-27
RHSA-2021:0934 — Low
- UbuntuUSN-4467-1LOW
QEMU vulnerabilities
Data Freshness Timeline
(refreshed 8× in last 7d / 25× 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 145 total refreshes for this CVE.
- 2026-09-08 21:56 UTCEPSS rescore
- 2026-09-07 15:57 UTCEPSS rescore
- 2026-09-07 03:18 UTCOSV refresh
- 2026-09-06 13:44 UTCEPSS rescore
- 2026-09-05 15:24 UTCEPSS rescore
- 2026-09-04 13:57 UTCEPSS rescore
- 2026-09-04 05:03 UTCEPSS rescore
- 2026-09-02 14:08 UTCEPSS rescore
- 2026-09-01 03:32 UTCEPSS rescore
- 2026-08-30 19:14 UTCEPSS rescore
- 2026-08-30 01:18 UTCEPSS rescore
- 2026-08-27 14:21 UTCEPSS rescore
- 2026-08-26 14:42 UTCEPSS rescore
- 2026-08-25 13:45 UTCEPSS rescore
- 2026-08-21 23:45 UTCEPSS rescore
- 2026-08-20 22:52 UTCEPSS rescore
- 2026-08-20 13:31 UTCOSV refresh
- 2026-08-19 17:00 UTCEPSS rescore
- 2026-08-18 13:44 UTCEPSS rescore
- 2026-08-17 13:43 UTCEPSS rescore
- 2026-08-16 14:52 UTCEPSS rescore
- 2026-08-16 02:11 UTCEPSS rescore
- 2026-08-15 01:26 UTCEPSS rescore
- 2026-08-13 21:57 UTCEPSS rescore
- 2026-08-12 13:47 UTCEPSS rescore
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- 2026-08-09 13:43 UTCEPSS rescore
- 2026-08-08 16:33 UTCEPSS rescore
- 2026-08-07 16:23 UTCEPSS rescore
- 2026-08-06 13:43 UTCEPSS rescore
- 2026-08-05 19:14 UTCEPSS rescore
- 2026-08-05 08:41 UTCOSV refresh
- 2026-08-04 15:06 UTCEPSS rescore
- 2026-08-04 10:34 UTCEPSS rescore
- 2026-08-03 10:32 UTCEPSS rescore
- 2026-08-02 02:23 UTCEPSS rescore
- 2026-08-01 04:12 UTCEPSS rescore
- 2026-07-30 16:25 UTCEPSS rescore
- 2026-07-30 01:27 UTCEPSS rescore
- 2026-07-28 15:32 UTCEPSS rescore
- 2026-07-27 14:06 UTCEPSS rescore
- 2026-07-26 14:51 UTCEPSS rescore
- 2026-07-25 14:15 UTCEPSS rescore
- 2026-07-25 14:14 UTCEPSS rescore
- 2026-07-24 14:14 UTCEPSS rescore
- 2026-07-23 14:15 UTCEPSS rescore
- 2026-07-23 14:15 UTCEPSS rescore
- 2026-07-23 01:50 UTCEG score recompute
- 2026-07-22 22:35 UTCEG score recompute
- 2026-07-22 14:05 UTCEPSS rescore
- 2026-07-21 15:22 UTCEPSS rescore
- 2026-07-21 15:22 UTCEPSS rescore
- 2026-07-20 17:04 UTCEPSS rescore
- 2026-07-20 17:04 UTCEPSS rescore
- 2026-07-19 14:28 UTCEPSS rescore
- 2026-07-19 07:22 UTCOSV refresh
- 2026-07-19 02:26 UTCEPSS rescore
- 2026-07-19 02:26 UTCEPSS rescore
- 2026-07-18 10:02 UTCEPSS rescore
- 2026-07-16 16:59 UTCEPSS rescore
- 2026-07-15 16:55 UTCEPSS rescore
- 2026-07-15 01:57 UTCEPSS rescore
- 2026-07-13 22:27 UTCEPSS rescore
- 2026-07-13 22:27 UTCEPSS rescore
- 2026-07-13 06:10 UTCEPSS rescore
- 2026-07-13 06:10 UTCEPSS rescore
- 2026-07-12 05:44 UTCEPSS rescore
- 2026-07-11 08:25 UTCEPSS rescore
- 2026-07-11 08:25 UTCEPSS rescore
- 2026-07-09 19:07 UTCEPSS rescore
- 2026-07-08 15:12 UTCEPSS rescore
- 2026-07-07 13:43 UTCEPSS rescore
- 2026-07-07 13:43 UTCEPSS rescore
- 2026-07-06 16:25 UTCEPSS rescore
- 2026-07-06 16:25 UTCEPSS rescore
- 2026-07-06 02:21 UTCEPSS rescore
- 2026-07-06 02:21 UTCEPSS rescore
- 2026-07-05 02:27 UTCEPSS rescore
- 2026-07-04 06:29 UTCEPSS rescore
- 2026-07-04 06:28 UTCEPSS rescore
- 2026-07-01 15:03 UTCEPSS rescore
- 2026-07-01 13:46 UTCOSV refresh
- 2026-06-30 23:20 UTCEPSS rescore
- 2026-06-30 23:20 UTCEPSS rescore
- 2026-06-28 14:05 UTCEPSS rescore
- 2026-06-28 04:54 UTCEPSS rescore
- 2026-06-28 04:54 UTCEPSS rescore
- 2026-06-27 03:06 UTCEPSS rescore
- 2026-06-25 13:47 UTCEPSS rescore
- 2026-06-24 14:03 UTCEPSS rescore
- 2026-06-24 14:03 UTCEPSS rescore
- 2026-06-23 21:31 UTCEPSS rescore
- 2026-06-23 21:31 UTCEPSS rescore
- 2026-06-22 14:23 UTCEPSS rescore
- 2026-06-22 14:23 UTCEPSS rescore
- 2026-06-21 14:54 UTCEPSS rescore
- 2026-06-21 14:54 UTCEPSS rescore
- 2026-06-21 01:57 UTCEPSS rescore
- 2026-06-21 01:57 UTCEPSS rescore
- 2026-06-19 19:23 UTCEPSS rescore
- 2026-06-18 17:50 UTCEPSS rescore
Frequently asked(5)
What is CVE-2020-16092?
When was CVE-2020-16092 disclosed?
Is CVE-2020-16092 actively exploited?
What is the CVSS score of CVE-2020-16092?
How do I remediate CVE-2020-16092?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2020-16092
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