CVE-2024-27983

highpriority · track · 41EPSS 0.872 · 100 %ileexploit · PoCDEEUNLRUUS
grimoire priorityP1 · Urgent
Exploitable?
Public exploit
1 exploit · PoC
Likely / severe?
87.2% (100th) EPSS
CVSS 8.2 · high
Is it mine?
69 products
Check your exposure
Who says so?
8 sources
cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · scored 2026-10-22

An attacker can make the Node.js HTTP/2 server completely unavailable by sending a small amount of HTTP/2 frames packets with a few HTTP/2 frames inside. It is possible to leave some data in nghttp2 memory after reset when headers with HTTP/2 CONTINUATION frame are sent to the server and then a TCP connection is abruptly closed by the client triggering the Http2Session destructor while header frames are still being processed (and stored in memory) causing a race condition.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

02

cvss

Technical severity, 0–10. One row per scoring source.

8.2
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.3–8.2

v3.08.2highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Hsecondary · ENISA EU
v3.08.2highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Hsecondary · support@hackerone.comexploitability 3.9 · impact 4.2
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · CISA US
v3.15.3mediumAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lsecondary · FSTEC (BDU) RU
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · Siemens ProductCERT DE
v3.18.2highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Hsecondary · NCSC-NL NL
03

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

05

exploits (1)

Public proof-of-concept and weaponised exploit code.

06

affected products (69)

Products and version ranges known to be affected.

07

advisories (12)

Vendor and ecosystem advisories describing this.

  • NCSC-2024-0301Kwetsbaarheden verholpen in Oracle Java SENL2024-07-17csaf · ncsc_nlNL

    Er zijn kwetsbaarheden verholpen in Oracle Java SE.

  • NCSC-2024-0411Kwetsbaarheden verholpen in Oracle Database productenNL2024-10-17csaf · ncsc_nlNL

    Oracle heeft kwetsbaarheden verholpen in diverse Database producten en subsystemen, zoals de Core database, Application Express, Autonomous Health Framework, Essbase, GoldenGate, SQL Developer en Secure Backup.

  • NCSC-2024-0433Kwetsbaarheden verholpen in Siemens productenNL2024-11-12csaf · ncsc_nlNL

    Siemens heeft kwetsbaarheden verholpen in diverse producten als Mendix, RUGGEDCOM, SCALANCE, SIMATIC en SINEC.

  • NCSC-2025-0026Kwetsbaarheden verholpen in Oracle JD EdwardsNL2025-01-22csaf · ncsc_nlNL

    Oracle heeft kwetsbaarheden verholpen in JD Edwards EnterpriseOne Tools (specifiek voor versies prior tot 9.2.9.2).

  • SSA-915275SSA-915275: Multiple Vulnerabilities in SINEC INS Before V1.0 SP2 Update 32024-11-12csaf · siemens_psirtDE

    SINEC INS before V1.0 SP2 Update 3 is affected by multiple vulnerabilities. Siemens has released a new version for SINEC INS and recommends to update to the latest version.

  • WID-SEC-W-2024-0776Node.js: Mehrere SchwachstellenDeutsch2024-04-03csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Node.js ausnutzen, um Sicherheitsmaßnahmen zu umgehen oder einen Denial-of-Service-Zustand zu verursachen.

  • WID-SEC-W-2024-1648Azul Zulu: Mehrere Schwachstellen ermöglichen Denial of ServiceDeutsch2024-07-16csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Azul Zulu ausnutzen, um einen Denial of Service Angriff durchzuführen.

  • WID-SEC-W-2024-1658Oracle Java SE: Mehrere SchwachstellenDeutsch2024-07-16csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Oracle Java SE ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.

  • WID-SEC-W-2025-0168Oracle JD Edwards: Mehrere SchwachstellenDeutsch2025-01-21csaf · cert_bundDE

    Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle JD Edwards ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.

  • ICSA-24-319-08Siemens SINEC INS2024-11-12icsa · cisa_csaf_otUS

    SINEC INS before V1.0 SP2 Update 3 is affected by multiple vulnerabilities. Siemens has released a new version for SINEC INS and recommends to update to the latest version.

  • BIT-node-2024-279832024-06-04vendor · osvUS

    An attacker can make the Node.js HTTP/2 server completely unavailable by sending a small amount of HTTP/2 frames packets with a few HTTP/2 frames inside. It is possible to leave some data in nghttp2 memory after reset when headers with HTTP/2 CONTINUATION frame are sent to the server and then a TCP connection is abruptly closed by the client triggering the Http2Session destructor while header frames are still being processed (and stored in memory) causing a race condition.

  • BIT-node-min-2024-279832024-12-16vendor · osvUS

    An attacker can make the Node.js HTTP/2 server completely unavailable by sending a small amount of HTTP/2 frames packets with a few HTTP/2 frames inside. It is possible to leave some data in nghttp2 memory after reset when headers with HTTP/2 CONTINUATION frame are sent to the server and then a TCP connection is abruptly closed by the client triggering the Http2Session destructor while header frames are still being processed (and stored in memory) causing a race condition.

08

also known as (6)

Other names and identifiers for this entity.

09

sources

Which sources assert this record, and when.

10

references (18)

External citations — patches, advisories, analysis.

scry

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