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No exploitation reportedFix available

CVE-2023-48298

No exploitation reported by the sources we read.

  • Published2023-12-21
  • WeaknessCWE-191

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

ClickHouse® is an open-source column-oriented database management system that allows generating analytical data reports in real-time. This vulnerability is an integer underflow resulting in crash due to stack buffer overflow in decompression of FPC codec. It can be triggered and exploited by an unauthenticated attacker. The vulnerability is very similar to CVE-2023-47118 with how the vulnerable function can be exploited.

Timeline

dates in UTC
  1. 2023-12-2123:15CVE publishedNVD

Versions per branch

NVD
Clickhouse
BranchAffectedFixed in
23.3≥ 23.3, ≤ 23.3.17.13no fix published
23.8≥ 23.8, ≤ 23.8.7.24no fix published
23.9≥ 23.9, ≤ 23.9.5.29no fix published
23.10≥ 23.10, ≤ 23.10.4.25no fix published
Clickhouse clickhouse cloud
BranchAffectedFixed in
23.9≥ 23.9, ≤ 23.9.2.47475no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As GitHub_M, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • ClickHouse
    Affected
    • = <= 23.10.2.14no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2023-12-21

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • clickhouseUbuntu:24.04:LTSall versions · no fixed version listed
  • clickhouseUbuntu:20.04:LTSall versions · no fixed version listed

Full record on NVD

Fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • CISA-ADPSSVC decisionnone2024-11-27
  • CNACVSS 3.15.9known since 2026-10-23
  • NVDCVSS 3.17.5read 2026-10-23
  • CNAweakness (CWE)CWE-191known since 2026-10-23
  • FIRST EPSSEPSS score0.6 %2026-11-08
  • OSVaffected packages—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2023-12-21
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2023-48298?

ClickHouse® is an open-source column-oriented database management system that allows generating analytical data reports in real-time. This vulnerability is an integer underflow resulting in crash due to stack buffer overflow in decompression of FPC codec. It can be triggered and exploited by an unauthenticated attacker. The vulnerability is very similar to CVE-2023-47118 with how the vulnerable function can be exploited.

Is CVE-2023-48298 actively exploited?

Active exploitation of CVE-2023-48298 has not been confirmed. Its EPSS score was 0.6% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-48298?

CVE-2023-48298 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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