CVE-2026-24832Network attack vector

Process crash via oversized BIGNUM conversion

Published Jan 27, 2026 · Updated Jan 27, 2026

Out-of-bounds write in IX-Ray Engine 1.6 before 1.3 allows remote attackers to corrupt memory via an oversized BIGNUM value. BN_bn2dec() in the bundled OpenSSL bn_print.c fails to stop when BN_div_word() rejects an oversized number, so the conversion loop does not reduce its temporary value and writes beyond the bn_data buffer. The CVSS assessment requires neither authentication nor user interaction, but published material does not identify the network request path that delivers the value; the demonstrated consequence is a process crash.

CVSS severity9.8
Critical
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in IX-Ray Engine 1.6 before 1.3 allows remote attackers to corrupt memory via an oversized BIGNUM value. BN_bn2dec() in the bundled OpenSSL bn_print.c fails to stop when BN_div_word() rejects an oversized number, so the conversion loop does not reduce its temporary value and writes beyond the bn_data buffer. The CVSS assessment requires neither authentication nor user interaction, but published material does not identify the network request path that delivers the value; the demonstrated consequence is a process crash.

The record

CVE
CVE-2026-24832
Published
Jan 27, 2026
Updated
Jan 27, 2026
Vendor
IX-Ray Team
Product
IX-Ray Engine 1.6
Classifications
CWE-787
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 27, 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 <1.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IX-Ray Team · IX-Ray Engine 1.6version=0 <1.3

Published CVSS scores

9.8Government Technology Agency of Singapore Cyber Security Group (GovTech CSG)CVSS:3.1/AV:N/AC:L/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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write

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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