How severe is CVE-2022-40319?

CVE-2022-40319 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 none, integrity high, and availability none.

Is CVE-2022-40319 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-40319?

CVE-2022-40319 affects Lsoft Listserv. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-40319?

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-2022-40319 published?

CVE-2022-40319 was published on 2023-01-17 and last updated on 2026-06-17.

CVE-2022-40319

CVE-2022-40319 is a high-severity vulnerability in Lsoft Listserv 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-639.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 7% (94th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-639
Affected product: Lsoft Listserv
Published: 2023-01-17
Last modified: 2026-06-17

Description

The LISTSERV 17 web interface allows remote attackers to conduct Insecure Direct Object References (IDOR) attacks via a modified email address in a wa.exe URL. The impact is unauthorized modification of a victim's LISTSERV account.

Frequently asked questions

What is CVE-2022-40319?: The LISTSERV 17 web interface allows remote attackers to conduct Insecure Direct Object References (IDOR) attacks via a modified email address in a wa.exe URL. The impact is unauthorized modification of a victim's LISTSERV account.
How severe is CVE-2022-40319?: CVE-2022-40319 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 none, integrity high, and availability none.
Is CVE-2022-40319 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-40319?: CVE-2022-40319 affects Lsoft Listserv. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-40319?: 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-2022-40319 published?: CVE-2022-40319 was published on 2023-01-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:lsoft:listserv:17.0:*:*:*:*:*:*:*

More vulnerabilities in Lsoft Listserv

CVE-2000-0425 — Critical (CVSS 10.0): Buffer overflow in the Web Archives component of L-Soft LISTSERV 1.8 allows remote attackers to execute arbitrary…
CVE-2006-1044 — High (CVSS 7.5): Multiple buffer overflows in LISTSERV 14.3 and 14.4, including LISTSERV Lite and HPO, with the web archive interface…
CVE-2005-1773 — High (CVSS 7.5): Multiple unknown vulnerabilities in L-Soft LISTSERV 14.3, 1.8e, and 1.8d allow remote attackers to execute arbitrary…
CVE-2000-0632 — High (CVSS 7.5): Buffer overflow in the web archive component of L-Soft Listserv 1.8d and earlier allows remote attackers to execute…
CVE-1999-0252 — High (CVSS 7.5): Buffer overflow in listserv allows arbitrary command execution.
CVE-2023-27641 — Medium (CVSS 6.1): The REPORT (after z but before a) parameter in wa.exe in L-Soft LISTSERV 16.5 before 17 allows an attacker to conduct…

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