CVE-2026-59162Public exploitNetwork attack vector

Process crash via negative shared-string index

Published Jul 10, 2026 · Updated Jul 10, 2026

Uncaught exception in QI-ANXIN GROUP Excelize before 2.11.0 allows attackers to crash a consuming process via a crafted XLSX file. The xlsxC.getValueFrom function converts a shared-string cell value with strconv.Atoi, checks only the upper bound, and indexes the slice with an accepted negative value. Reachability requires a consuming application to read an attacker-supplied workbook through GetCellValue or GetRows; without panic recovery, the process terminates.

CVSS severity6.9
Medium
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncaught exception in QI-ANXIN GROUP Excelize before 2.11.0 allows attackers to crash a consuming process via a crafted XLSX file. The xlsxC.getValueFrom function converts a shared-string cell value with strconv.Atoi, checks only the upper bound, and indexes the slice with an accepted negative value. Reachability requires a consuming application to read an attacker-supplied workbook through GetCellValue or GetRows; without panic recovery, the process terminates.

The record

CVE
CVE-2026-59162
Published
Jul 10, 2026
Updated
Jul 10, 2026
Vendor
QI-ANXIN GROUP
Product
Excelize
Classifications
CWE-755, CWE-248, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 10, 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=< 2.11.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

QI-ANXIN GROUP · Excelizeversion=< 2.11.0

Published CVSS scores

6.9GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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 exploitPublished

Weakness, pattern, technique

CWE-755Improper Handling of Exceptional Conditions
CWE-248Uncaught Exception
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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