Some HTTP/2 implementations are vulnerable to ping floods, potentially leading to a denial of service. The attacker sends continual pings to an HTTP/2 peer, causing the peer to build an internal queue of responses. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both.
CVE-2019-9512
This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 51.2%, top 2% 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).
- High exploitation likelihood — EPSS 83%
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EPSS
- 99.7%
- KEV
- Not listed
Published
August 13, 2019
Last Modified
November 21, 2024
References (130)
- cret@certhttp://lists.opensuse.org/opensuse-security-announce/2019-08/msg00076.html
- cret@certhttp://lists.opensuse.org/opensuse-security-announce/2019-09/msg00002.html
- cret@certhttp://lists.opensuse.org/opensuse-security-announce/2019-09/msg00011.html
- cret@certhttp://lists.opensuse.org/opensuse-security-announce/2019-09/msg00021.html
- cret@certhttp://lists.opensuse.org/opensuse-security-announce/2019-09/msg00031.html
- cret@certhttp://lists.opensuse.org/opensuse-security-announce/2019-09/msg00032.html
- cret@certhttp://lists.opensuse.org/opensuse-security-announce/2019-09/msg00038.html
- cret@certhttp://seclists.org/fulldisclosure/2019/Aug/16
- cret@certhttp://www.openwall.com/lists/oss-security/2019/08/20/1
- cret@certhttps://access.redhat.com/errata/RHSA-2019:2594
- cret@certhttps://access.redhat.com/errata/RHSA-2019:2661
- cret@certhttps://access.redhat.com/errata/RHSA-2019:2682
- cret@certhttps://access.redhat.com/errata/RHSA-2019:2690
- cret@certhttps://access.redhat.com/errata/RHSA-2019:2726
- cret@certhttps://access.redhat.com/errata/RHSA-2019:2766
Vendor Advisories for CVE-2019-9512(6)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2024:5856Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 7.1.7 on RHEL 7 security update
- RHSA-2020:3197Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Process Automation Manager 7.8.0 Security Update
- RHSA-2020:3196Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Decision Manager 7.8.0 Security Update
- RHSA-2020:2067Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat build of Thorntail 2.5.1 security and bug fix update
- RHSA-2019:2939Red Hat Product SecurityHigh
Red Hat Security Advisory: rh-nodejs10-nodejs security update
- RHSA-2019:2925Red Hat Product SecurityHigh
Red Hat Security Advisory: nodejs:10 security update
Patch Availability(24)
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
(2 across 1 ecosystem)
Go(2)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| golang.org/x/net | — | 0.0.0-20190813141303-74dc4d7220e7 | — |
| stdlib | — | 1.12.8 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(23)
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.
- Red HatRHBA-2019:2819IMPORTANT2019-08-13
RHBA-2019:2819 — Important
- Red HatRHBA-2019:3139IMPORTANT2019-08-13
RHBA-2019:3139 — Important
- Red HatRHSA-2019:2594IMPORTANT2019-08-13
RHSA-2019:2594 — Important
- Red HatRHSA-2019:2661IMPORTANT2019-08-13
RHSA-2019:2661 — Important
- Red HatRHSA-2019:2682IMPORTANT2019-08-13
RHSA-2019:2682 — Important
- Red HatRHSA-2019:2690IMPORTANT2019-08-13
RHSA-2019:2690 — Important
- Red HatRHSA-2019:2726IMPORTANT2019-08-13
RHSA-2019:2726 — Important
- Red HatRHSA-2019:2766IMPORTANT2019-08-13
RHSA-2019:2766 — Important
- Red HatRHSA-2019:2769IMPORTANT2019-08-13
RHSA-2019:2769 — Important
- Red HatRHSA-2019:2796IMPORTANT2019-08-13
RHSA-2019:2796 — Important
- Red HatRHSA-2019:2817IMPORTANT2019-08-13
RHSA-2019:2817 — Important
- Red HatRHSA-2019:2861IMPORTANT2019-08-13
RHSA-2019:2861 — Important
- Red HatRHSA-2019:2955IMPORTANT2019-08-13
RHSA-2019:2955 — Important
- Red HatRHSA-2019:2966IMPORTANT2019-08-13
RHSA-2019:2966 — Important
- Red HatRHSA-2019:3131IMPORTANT2019-08-13
RHSA-2019:3131 — Important
- Red HatRHSA-2019:3245IMPORTANT2019-08-13
RHSA-2019:3245 — Important
- Red HatRHSA-2019:3265IMPORTANT2019-08-13
RHSA-2019:3265 — Important
- Red HatRHSA-2019:3892IMPORTANT2019-08-13
RHSA-2019:3892 — Important
- Red HatRHSA-2019:3906IMPORTANT2019-08-13
RHSA-2019:3906 — Important
- Red HatRHSA-2019:4018IMPORTANT2019-08-13
RHSA-2019:4018 — Important
- Red HatRHSA-2019:4019IMPORTANT2019-08-13
RHSA-2019:4019 — Important
- Red HatRHSA-2019:4020IMPORTANT2019-08-13
RHSA-2019:4020 — Important
- Red HatRHSA-2019:4021IMPORTANT2019-08-13
RHSA-2019:4021 — Important
Data Freshness Timeline
(refreshed 7× in last 7d / 22× 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.
- 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 09:32 UTCOSV refresh
- 2026-07-16 16:59 UTCEPSS rescore
- 2026-07-16 16:59 UTCEPSS rescore
- 2026-07-13 22:27 UTCEPSS rescore
- 2026-07-13 22:27 UTCEPSS rescore
- 2026-07-11 08:24 UTCEPSS rescore
- 2026-07-11 08:24 UTCEPSS rescore
- 2026-07-07 13:43 UTCEPSS rescore
- 2026-07-04 06:28 UTCEPSS rescore
- 2026-07-03 04:35 UTCOSV refresh
- 2026-07-01 15:03 UTCEPSS rescore
- 2026-07-01 15:03 UTCEPSS rescore
- 2026-06-28 04:54 UTCEPSS rescore
- 2026-06-28 04:54 UTCEPSS rescore
- 2026-06-25 13:47 UTCEPSS rescore
- 2026-06-25 13:47 UTCEPSS rescore
- 2026-06-23 21:31 UTCEPSS rescore
- 2026-06-23 21:31 UTCEPSS rescore
- 2026-06-21 14:54 UTCEPSS rescore
- 2026-06-21 14:54 UTCEPSS rescore
- 2026-06-21 01:57 UTCEPSS rescore
Show 34 moreShow fewer
- 2026-06-21 01:57 UTCEPSS rescore
- 2026-06-16 17:50 UTCEPSS rescore
- 2026-06-15 17:46 UTCEPSS rescore
- 2026-06-14 20:43 UTCOSV refresh
- 2026-06-13 22:58 UTCEPSS rescore
- 2026-06-12 23:09 UTCEPSS rescore
- 2026-06-12 23:09 UTCEPSS rescore
- 2026-06-11 13:58 UTCEPSS rescore
- 2026-06-10 22:16 UTCEPSS rescore
- 2026-06-10 22:16 UTCEPSS rescore
- 2026-06-10 13:19 UTCEPSS rescore
- 2026-06-08 14:15 UTCEPSS rescore
- 2026-06-08 14:15 UTCEPSS rescore
- 2026-06-08 14:15 UTCEPSS rescore
- 2026-06-06 13:45 UTCEPSS rescore
- 2026-06-06 13:45 UTCEPSS rescore
- 2026-06-05 22:45 UTCEPSS rescore
- 2026-06-05 06:08 UTCEPSS rescore
- 2026-06-04 13:10 UTCEPSS rescore
- 2026-06-04 13:10 UTCEPSS rescore
- 2026-06-02 20:11 UTCEPSS rescore
- 2026-06-02 20:11 UTCEPSS rescore
- 2026-05-31 22:29 UTCEPSS rescore
- 2026-05-31 22:29 UTCEPSS rescore
- 2026-05-31 00:14 UTCEPSS rescore
- 2026-05-31 00:14 UTCEPSS rescore
- 2026-05-29 13:42 UTCEPSS rescore
- 2026-05-28 13:43 UTCEPSS rescore
- 2026-05-28 13:43 UTCEPSS rescore
- 2026-05-27 16:01 UTCEG score recompute
- 2026-05-27 16:01 UTCVendor advisory
- 2026-05-27 13:39 UTCEPSS rescore
- 2026-05-27 13:38 UTCEPSS rescore
- 2026-05-24 16:47 UTCEPSS rescore
Related CVEs(same vendor + same CWE)
Same vendor
10 shownmsrc · redhat
Same CWE
10 shownCWE-400
Frequently asked(5)
What is CVE-2019-9512?
When was CVE-2019-9512 disclosed?
Is CVE-2019-9512 actively exploited?
What is the CVSS score of CVE-2019-9512?
How do I remediate CVE-2019-9512?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2019-9512
Is Your Infrastructure Affected by CVE-2019-9512?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.