CVE-2026-7827Network attack vectorHinoki check available

Server crash via unbounded RDB property count

Published Oct 9, 2026 · Updated Oct 9, 2026

Stack overflow in FalkorDB before 4.18.4 allows remote attackers to crash the server via a crafted RDB replication stream. The _RdbLoadEntity function in the RDB graph decoders uses an unbounded entity property count to size two thread-stack arrays, then fills them with attacker-supplied values. Exploitation requires Redis replication-command access, including passwordless instances; arbitrary code execution is reported as a potential consequence.

CVSS severity9.2
Critical
EPSS probability0.58%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Stack overflow in FalkorDB before 4.18.4 allows remote attackers to crash the server via a crafted RDB replication stream. The _RdbLoadEntity function in the RDB graph decoders uses an unbounded entity property count to size two thread-stack arrays, then fills them with attacker-supplied values. Exploitation requires Redis replication-command access, including passwordless instances; arbitrary code execution is reported as a potential consequence.

The record

CVE
CVE-2026-7827
Published
Oct 9, 2026
Updated
Oct 9, 2026
Vendor
FalkorDB
Product
FalkorDB
Classifications
CWE-121, CAPEC-100, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <4.18.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

FalkorDB · FalkorDBversion=0 <4.18.4

Published CVSS scores

9.2SecurinCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
8.1SecurinCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
CAPEC-100Overflow Buffers
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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