How severe is CVE-2023-40829?

CVE-2023-40829 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-40829 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-40829?

CVE-2023-40829 primarily affects Tencent Enterprise Wechat Privatization. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-40829?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-40829 published?

CVE-2023-40829 was published on 2023-10-12 and last updated on 2026-06-17.

CVE-2023-40829

CVE-2023-40829 is a high-severity vulnerability in Tencent Enterprise Wechat Privatization with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-863.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (38th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-863
Affected product: Tencent Enterprise Wechat Privatization
Published: 2023-10-12
Last modified: 2026-06-17

Description

There is an interface unauthorized access vulnerability in the background of Tencent Enterprise Wechat Privatization 2.5.x and 2.6.930000.

Frequently asked questions

What is CVE-2023-40829?: There is an interface unauthorized access vulnerability in the background of Tencent Enterprise Wechat Privatization 2.5.x and 2.6.930000.
How severe is CVE-2023-40829?: CVE-2023-40829 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-40829 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-40829?: CVE-2023-40829 primarily affects Tencent Enterprise Wechat Privatization. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-40829?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-40829 published?: CVE-2023-40829 was published on 2023-10-12 and last updated on 2026-06-17.

References

https://gist.github.com/wwwziziyu/85bdf8d56b415974c4827a5668f493e9

Affected products (2)

cpe:2.3:a:tencent:enterprise_wechat_privatization:2.5.0:*:*:*:*:*:*:*
cpe:2.3:a:tencent:enterprise_wechat_privatization:2.6.930000:*:*:*:*:*:*:*

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