CVE-2019-9515
No exploitation reported by the sources we read.
- Published2019-08-13
- Fixed in15.0.1.1 · 14.1.2.1 · 14.0.1.1 · 13.1.3.2 · 12.1.5.1 · 11.6.5.1
- WeaknessCWE-400 · CWE-770
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
Some HTTP/2 implementations are vulnerable to a settings flood, potentially leading to a denial of service. The attacker sends a stream of SETTINGS frames to the peer. Since the RFC requires that the peer reply with one acknowledgement per SETTINGS frame, an empty SETTINGS frame is almost equivalent in behavior to a ping. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both.
Timeline
dates in UTC- 2019-08-1321:15CVE publishedNVD
- 2026-10-2319:23EPSS crossed 10 %FIRST EPSS
Observed activity
isMalicious corpus · updated 2026-10-23 18:48 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2019-9515?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-9515?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 15.0 | ≥ 15.0.0, < 15.0.1.1 | 15.0.1.1 | NVD |
| 14.1 | ≥ 14.1.0, < 14.1.2.1 | 14.1.2.1 | NVD |
| 14.0 | ≥ 14.0.0, < 14.0.1.1 | 14.0.1.1 | NVD |
| 13.1 | ≥ 13.1.0, < 13.1.3.2 | 13.1.3.2 | NVD |
| 12.1 | ≥ 12.1.0, < 12.1.5.1 | 12.1.5.1 | NVD |
| 11.6 | ≥ 11.6.1, < 11.6.5.1 | 11.6.5.1 | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 12.x | ≥ 12.0.0, < 12.8.1 | 12.8.1 | NVD |
| 10.x | ≥ 10.13.0, < 10.16.3 | 10.16.3 | NVD |
| 8.x | ≥ 8.9.0, < 8.16.1 | 8.16.1 | NVD |
| 8.x | ≥ 8.0.0, ≤ 8.8.1 | no fix published | NVD |
| 10.x | ≥ 10.0.0, ≤ 10.12.0 | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 6.x | ≥ 6.0.0, ≤ 6.2.3 | no fix published | NVD |
| 7.x | ≥ 7.0.0, ≤ 7.1.6 | no fix published | NVD |
| 8.0 | ≥ 8.0.0, ≤ 8.0.3 | no fix published | NVD |
19 more products in the sources.
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Fix
- Update F5 big-ip local traffic manager to 15.0.1.1 · 14.1.2.1 · 14.0.1.1 · 13.1.3.2 · 12.1.5.1 · 11.6.5.1
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Published
- 2019-08-13
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2019-9515?
Is CVE-2019-9515 actively exploited?
What is the CVSS score for CVE-2019-9515?
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Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».
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