CVE-2019-0197

mediumpriority · track · 20EPSS 0.086 · 95 %ileDEEURUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
8.59% (95th) EPSS
CVSS 4.9 · medium
Is it mine?
47 products
Check your exposure
Who says so?
4 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

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.

01

cvss

Technical severity, 0–10. One row per scoring source.

4.9
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.9–4.9

v2.04.9mediumAV:N/AC:M/Au:S/C:N/I:P/A:Pprimary · NVD / NIST USexploitability 6.8 · impact 4.9
v3.14.2mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:Lprimary · NVD / NIST USexploitability 1.6 · impact 2.5
v3.14.2mediumAV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:Lsecondary · FSTEC (BDU) RU
v3.13.9lowCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L/E:Usecondary · CVSS-BT (t0sche)
02

weaknesses

The CWE weakness classes this flaw belongs to.

03

affected products (47)

Products and version ranges known to be affected.

04

advisories (1)

Vendor and ecosystem advisories describing this.

  • WID-SEC-W-2023-2047Apache HTTP Server: Mehrere SchwachstellenDeutsch2019-04-02csaf · cert_bundDE

    Ein entfernter, anonymer, authentisierter oder lokaler Angreifer kann mehrere Schwachstellen im Apache HTTP Server ausnutzen, um seine Rechte zu erweitern, Sicherheitsrestriktionen zu umgehen oder um einen Denial of Service Angriff durchzuführen.

05

also known as (4)

Other names and identifiers for this entity.

06

sources

Which sources assert this record, and when.

published 2019-06-11modified 2026-06-17
08

references (107)

External citations — patches, advisories, analysis.

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