How severe is CVE-2019-9539?

CVE-2019-9539 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2019-9539 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-9539?

CVE-2019-9539 affects Telos Automated Message Handling System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-9539?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-9539 published?

CVE-2019-9539 was published on 2020-01-03 and last updated on 2026-06-17.

CVE-2019-9539

CVE-2019-9539 is a medium-severity vulnerability in Telos Automated Message Handling System with a CVSS 3.x base score of 6.1. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Telos Automated Message Handling System
Published: 2020-01-03
Last modified: 2026-06-17

Description

: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in ModalWindowPopup.asp of Telos Automated Message Handling System allows a remote attacker to inject arbitrary script into an AMHS session. This issue affects: Telos Automated Message Handling System versions prior to 4.1.5.5.

Frequently asked questions

What is CVE-2019-9539?: : Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in ModalWindowPopup.asp of Telos Automated Message Handling System allows a remote attacker to inject arbitrary script into an AMHS session. This issue affects: Telos Automated Message Handling System versions prior to 4.1.5.5.
How severe is CVE-2019-9539?: CVE-2019-9539 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2019-9539 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-9539?: CVE-2019-9539 affects Telos Automated Message Handling System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-9539?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-9539 published?: CVE-2019-9539 was published on 2020-01-03 and last updated on 2026-06-17.

References

https://www.kb.cert.org/vuls/id/873161/

Affected products (1)

cpe:2.3:a:telos:automated_message_handling_system:*:*:*:*:*:*:*:*

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CVE-2019-9538 — Medium (CVSS 6.1): : Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the LDAP cbURL…
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