Vulnerability · CVE-2019-10072
The fix for CVE-2019-0199 was incomplete and did not address HTTP/2 connection window exhaustion on write in Apache Tomcat versions 9.0.0.M1 to 9.0.19 and 8.5.0 to 8.5.40 .
Published Jun 21, 2019 · catalog updated Nov 2, 2026 · The fix for was
Last checked Nov 5, 2026. A connected source was read within the last 7 days.
Check this week
CVE-2019-10072 is not in CISA KEV. FIRST estimates a 72.99% chance of exploitation in the next 30 days. Check whether you run The fix for was.
Gaps on this record
- The stored product name is a package slug. The name on this page is taken from the title (The fix for was).
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
Same product and reporting
- CVE-2026-73180 · Medium
- CVE-2026-68763 · High
- CVE-2026-68569 · High
- CVE-2026-68525 · Critical
- CVE-2026-66422 · High
- Severity
- High7.5
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 72.99%
- Remediation
- Version ranges on file
- Affected products
- cpe apache/tomcat
The fix for CVE-2019-0199 was incomplete and did not address HTTP/2 connection window exhaustion on write in Apache Tomcat versions 9.0.0.M1 to 9.0.19 and 8.5.0 to 8.5.40 . By not sending WINDOW_UPDATE messages for the connection window (stream 0) clients were able to cause server-side threads to block eventually leading to thread exhaustion and a DoS.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- cpe apache/tomcat9.0.0
- cpe apache/tomcat>= 8.5.0, <= 8.5.40
- cpe apache/tomcat>= 9.0.1, <= 9.0.19
How to fix CVE-2019-10072
Upgrade
CVE-2019-10072 lists a fix boundary at 8.5.40. Compare the installed build with that boundary before you change production.
Version check
Affected <= 8.5.40
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
CVE-2019-10072 is not in CISA KEV. FIRST estimates a 72.99% chance of exploitation in the next 30 days. Check whether you run The fix for was.
Which versions are affected?
Compare what you have installed with 9.0.0, >= 8.5.0, <= 8.5.40, >= 9.0.1, <= 9.0.19. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-667. EPSS 72.99%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Technology hubs
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Jun 21, 2019 · NIST NVD
Detected
The fix for CVE-2019-0199 was incomplete and did not address HTTP/2 connection window exhaustion on write in Apache Tomcat versions 9.0.0.M1 to 9.0.19 and 8.5.0 to 8.5.40 . By not sending WINDOW_UPDATE messages for the connection window (stream 0) clients were able to cause server-side threads to block eventually leading to thread exhaustion and a DoS.
Nov 2, 2026 · NIST NVD
Updated
The fix for CVE-2019-0199 was incomplete and did not address HTTP/2 connection window exhaustion on write in Apache Tomcat versions 9.0.0.M1 to 9.0.19 and 8.5.0 to 8.5.40 . By not sending WINDOW_UPDATE messages for the connection window (stream 0) clients were able to cause server-side threads to block eventually leading to thread exhaustion and a DoS.
Sources
- CVE.orgVulnerability recordCVE-2019-10072
Official CVE identifier
cve.org - Monitored products — criticalVendor advisoryCVE-2019-10072
The fix for CVE-2019-0199 was incomplete and did not address HTTP/2 connection window exhaustion on write in Apache Tomcat versions 9.0.0.M1 to 9.0.19 and 8.5.0 to 8.5.40 . By not sending WINDOW_UPDATE messages for the connection window (stream 0) clients were able to cause server-side threads to block eventually leading to thread exhaustion and a DoS.
nvd.nist.gov - NIST NVDVulnerability recordCVE-2019-10072
The fix for CVE-2019-0199 was incomplete and did not address HTTP/2 connection window exhaustion on write in Apache Tomcat versions 9.0.0.M1 to 9.0.19 and 8.5.0 to 8.5.40 . By not sending WINDOW_UPDATE messages for the connection window (stream 0) clients were able to cause serve
nvd.nist.gov
References
Freshness
Last verified in this catalog Nov 5, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- CVE.orgNov 4, 2026
- Monitored products — criticalNov 3, 2026
- NIST NVDNov 2, 2026