What is CVE-2023-5035?

CVE-2023-5035 is a low-severity vulnerability in Moxa Eds-G503, classified under Sensitive Cookie in HTTPS Session Without 'Secure' Attribute. CVSS score: 3.1/10. Published 2023-11-02.

How severe is CVE-2023-5035?

Low severity. CVSS v3 base score is 3.1 out of 10.

Vulnerability in Moxa Eds-G503

CVE-2023-5035

A vulnerability has been identified in PT-G503 Series firmware versions prior to v5.2, where the Secure attribute for sensitive cookies in HTTPS sessions is not set, which could cause the cookie to be transmitted in plaintext over an HTTP session. The vulnerability may lead to security risks, potentially exposing user session data to unauthorized access and manipulation.

Published 2023-11-02 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 3.1 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (10.7th percentile), scored 2026-10-20.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 10.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Weakness classification (CWE)

References

www.moxa.com/en/support/product-support/security-advisory/mpsa-230203-pt-g503-s… (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2023-5035?: CVE-2023-5035 is a low-severity vulnerability in Moxa Eds-G503, classified under Sensitive Cookie in HTTPS Session Without 'Secure' Attribute. CVSS score: 3.1/10. Published 2023-11-02.
How severe is CVE-2023-5035?: Low severity. CVSS v3 base score is 3.1 out of 10.