SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2019-10081

HTTP/2 (2.4.20 through 2.4.39) very early pushes, for example configured with "H2PushResource", could lead to an overwrite of memory in the pushing request's pool, leading to crashes.

HIGH 7.5EPSS 14.6%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 14.6%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.

Description

HTTP/2 (2.4.20 through 2.4.39) very early pushes, for example configured with "H2PushResource", could lead to an overwrite of memory in the pushing request's pool, leading to crashes. The memory copied is that of the configured push link header values, not data supplied by the client.

CVSS 3.0
7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
14.56% probability · 97th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-787
Affected
apache/http server · debian/debian linux
Source
security@apache.org
EPSS trend
0%8%15%27 October 2026: 14.56%27 October 202627 October 2026

EPSS 14.6% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.