How severe is CVE-2020-29667?

CVE-2020-29667 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-29667 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-29667?

CVE-2020-29667 affects Lanatmservice M3 Atm Monitoring System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-29667?

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

When was CVE-2020-29667 published?

CVE-2020-29667 was published on 2020-12-10 and last updated on 2026-06-17.

CVE-2020-29667

CVE-2020-29667 is a critical-severity vulnerability in Lanatmservice M3 Atm Monitoring System with a CVSS 3.x base score of 9.8. 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-613.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-613
Affected product: Lanatmservice M3 Atm Monitoring System
Published: 2020-12-10
Last modified: 2026-06-17

Description

In Lan ATMService M3 ATM Monitoring System 6.1.0, a remote attacker able to use a default cookie value, such as PHPSESSID=LANIT-IMANAGER, can achieve control over the system because of Insufficient Session Expiration.

Frequently asked questions

What is CVE-2020-29667?: In Lan ATMService M3 ATM Monitoring System 6.1.0, a remote attacker able to use a default cookie value, such as PHPSESSID=LANIT-IMANAGER, can achieve control over the system because of Insufficient Session Expiration.
How severe is CVE-2020-29667?: CVE-2020-29667 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-29667 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-29667?: CVE-2020-29667 affects Lanatmservice M3 Atm Monitoring System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-29667?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-29667 published?: CVE-2020-29667 was published on 2020-12-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:lanatmservice:m3_atm_monitoring_system:6.1.0:*:*:*:*:*:*:*

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