CVE-2025-8671
CVE-2025-8671
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
A mismatch caused by client-triggered server-sent stream resets between HTTP/2 specifications and the internal architectures of some HTTP/2 implementations may result in excessive server resource consumption leading to denial-of-service (DoS). By opening streams and then rapidly triggering the server to reset them—using malformed frames or flow control errors—an attacker can exploit incorrect stream accounting. Streams reset by the server are considered closed at the protocol level, even though backend processing continues. This allows a client to cause the server to handle an unbounded number of concurrent streams on a single connection. This CVE will be updated as affected product details are released.
These are all security issues fixed in the lighttpd-1.4.80-1.1 package on the GA media of openSUSE Tumbleweed.
CVSS Scores
SSVC
- Decision:Attend
Timeline
- 2025-08-06 CVE Reserved
- 2025-08-13 CVE Published
- 2025-08-17 CVE Updated
- 2025-08-19 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-404: Improper Resource Shutdown or Release
CAPEC
References (9)
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Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
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Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Fastly Search vendor "Fastly" | H20 Search vendor "Fastly" for product "H20" | 579 Search vendor "Fastly" for product "H20" and version "579" | en |
Affected
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SUSE Linux Search vendor "SUSE Linux" | SUSE Manager Server Search vendor "SUSE Linux" for product "SUSE Manager Server" | 4.3 Search vendor "SUSE Linux" for product "SUSE Manager Server" and version "4.3" | en |
Affected
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SUSE Linux Search vendor "SUSE Linux" | SUSE Manager Server LTS Search vendor "SUSE Linux" for product "SUSE Manager Server LTS" | 4.3 Search vendor "SUSE Linux" for product "SUSE Manager Server LTS" and version "4.3" | en |
Affected
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SUSE Linux Search vendor "SUSE Linux" | SUSE Manager Proxy Search vendor "SUSE Linux" for product "SUSE Manager Proxy" | 4.3 Search vendor "SUSE Linux" for product "SUSE Manager Proxy" and version "4.3" | en |
Affected
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SUSE Linux Search vendor "SUSE Linux" | SUSE Manager Retail Branch Server Search vendor "SUSE Linux" for product "SUSE Manager Retail Branch Server" | 4.3 Search vendor "SUSE Linux" for product "SUSE Manager Retail Branch Server" and version "4.3" | en |
Affected
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SUSE Linux Search vendor "SUSE Linux" | OpenSUSE Leap Search vendor "SUSE Linux" for product "OpenSUSE Leap" | 15.6 Search vendor "SUSE Linux" for product "OpenSUSE Leap" and version "15.6" | en |
Affected
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