CVE-2019-0197

MEDIUMNVD 4.24.2—
EchelonGraph scoreMEDIUM confidence

Score 4.2 from GitHub Security Advisory published 2022-05-24. NVD baseline CVSS 4.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
4.2EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 8.6%CVSS: 4.2Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A vulnerability was found in Apache HTTP Server 2.4.34 to 2.4.38. When HTTP/2 was enabled for a http: host or H2Upgrade was enabled for h2 on a https: host, an Upgrade request from http/1.1 to http/2 that was not the first request on a connection could lead to a misconfiguration and crash. Server that never enabled the h2 protocol or that only enabled it for https: and did not set "H2Upgrade on" are unaffected by this issue.

CVSS v3
4.2
EG Score
4.2MEDIUMmedium confidence
EG Risk
27
EG Risk 27/100CISA SSVC

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
Severity42% × 45%
Exploitation9% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
8.6%
EPSS %ILE
94th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track or Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

June 11, 2019

Last Modified

November 21, 2024

References (60)

Vendor Advisories for CVE-2019-0197(3)

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 / EcosystemFix (by version range) / PatchReleasedSource
ubuntuapache2-utils (2.4.18-2ubuntu3.12) @ xenial2026-05-27ubuntu
redhathttpd:2.4-8030020200818000036.30b713e62020-11-04redhat
redhathttpd2020-06-22redhat
redhatjbcs-httpd24-openssl-pkcs11-0:0.4.10-7.jbcs.el72020-06-22redhat
redhatjbcs-httpd24-openssl-1:1.1.1-25.jbcs.el72019-11-20redhat
redhatjbcs-httpd24-openssl-1:1.1.1-25.jbcs.el62019-11-20redhat

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

(23 across 23 ecosystems)
Alpine:v3.10(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.4.39-r0: fixed in 2.4.39-r0
—
Alpine:v3.11(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.4.39-r0: fixed in 2.4.39-r0
—
Alpine:v3.12(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.4.39-r0: fixed in 2.4.39-r0
—
Alpine:v3.13(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.4.39-r0: fixed in 2.4.39-r0
—
Alpine:v3.14(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.4.39-r0: fixed in 2.4.39-r0
—
Alpine:v3.15(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.4.39-r0: fixed in 2.4.39-r0
—
Alpine:v3.16(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.4.39-r0: fixed in 2.4.39-r0
—
Alpine:v3.17(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.4.39-r0: fixed in 2.4.39-r0
—
Alpine:v3.18(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.4.39-r0: fixed in 2.4.39-r0
—
Alpine:v3.19(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.4.39-r0: fixed in 2.4.39-r0
—
Alpine:v3.20(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.4.39-r0: fixed in 2.4.39-r0
—
Alpine:v3.21(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.4.39-r0: fixed in 2.4.39-r0
—
Alpine:v3.22(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.4.39-r0: fixed in 2.4.39-r0
—
Alpine:v3.23(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.4.39-r0: fixed in 2.4.39-r0
—
Alpine:v3.24(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.4.39-r0: fixed in 2.4.39-r0
—
Alpine:v3.6(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.4.39-r0: fixed in 2.4.39-r0
—
Alpine:v3.7(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.4.39-r0: fixed in 2.4.39-r0
—
Alpine:v3.8(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.4.39-r0: fixed in 2.4.39-r0
—
Alpine:v3.9(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.4.39-r0: fixed in 2.4.39-r0
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.4.38-3: fixed in 2.4.38-3
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.4.38-3: fixed in 2.4.38-3
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.4.38-3: fixed in 2.4.38-3
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.4.38-3: fixed in 2.4.38-3
—

Weakness Classification(1)

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

Additional Vendor Advisories

(4)

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 5× 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 161 total refreshes for this CVE.

  1. 2026-10-09 20:03 UTCEPSS rescore
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  12. 2026-09-28 03:32 UTCOSV refresh
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  1. 2026-09-08 10:09 UTCOSV refresh
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  26. 2026-08-08 16:32 UTCEPSS rescore
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  29. 2026-08-06 03:51 UTCOSV refresh
  30. 2026-08-04 15:05 UTCEPSS rescore
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  46. 2026-07-23 01:38 UTCEG score recompute
  47. 2026-07-22 22:18 UTCEG score recompute
  48. 2026-07-22 14:05 UTCEPSS rescore
  49. 2026-07-21 15:22 UTCEPSS rescore
  50. 2026-07-20 17:04 UTCEPSS rescore
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Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2019-0197?
CVE-2019-0197 is a medium vulnerability published on June 11, 2019. A vulnerability was found in Apache HTTP Server 2.4.34 to 2.4.38. When HTTP/2 was enabled for a http: host or H2Upgrade was enabled for h2 on a https: host, an Upgrade request from http/1.1 to http/2 that was not the first request on a connection could lead to a misconfiguration and crash. Server…
When was CVE-2019-0197 disclosed?
CVE-2019-0197 was first published on June 11, 2019, 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-2019-0197 actively exploited?
CVE-2019-0197 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 8.6% probability of exploitation in the next 30 days (94th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2019-0197?
CVE-2019-0197 has a CVSS v3 base score of 4.2 (NVD).
How do I remediate CVE-2019-0197?
A fix for CVE-2019-0197 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2019-0197 are linked in the Vendor Advisories panel on this page.

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