How severe is CVE-2023-23449?

CVE-2023-23449 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2023-23449 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-23449?

CVE-2023-23449 primarily affects Sick Ftmg-esd20axx Firmware. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-23449?

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

When was CVE-2023-23449 published?

CVE-2023-23449 was published on 2023-05-15 and last updated on 2026-06-17.

CVE-2023-23449

CVE-2023-23449 is a medium-severity vulnerability in Sick Ftmg-esd20axx Firmware with a CVSS 3.x base score of 5.3. 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-203.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-203
Affected product: Sick Ftmg-esd20axx Firmware
Published: 2023-05-15
Last modified: 2026-06-17

Description

Observable Response Discrepancy in SICK FTMg AIR FLOW SENSOR with Partnumbers 1100214, 1100215, 1100216, 1120114, 1120116, 1122524, 1122526 allows a remote attacker to gain information about valid usernames by analyzing challenge responses from the server via the REST interface.

Frequently asked questions

What is CVE-2023-23449?: Observable Response Discrepancy in SICK FTMg AIR FLOW SENSOR with Partnumbers 1100214, 1100215, 1100216, 1120114, 1120116, 1122524, 1122526 allows a remote attacker to gain information about valid usernames by analyzing challenge responses from the server via the REST interface.
How severe is CVE-2023-23449?: CVE-2023-23449 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2023-23449 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-23449?: CVE-2023-23449 primarily affects Sick Ftmg-esd20axx Firmware. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-23449?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-23449 published?: CVE-2023-23449 was published on 2023-05-15 and last updated on 2026-06-17.

References

Affected products (7)

cpe:2.3:o:sick:ftmg-esd20axx_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:sick:ftmg-esd25axx_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:sick:ftmg-esn40sxx_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:sick:ftmg-esn50sxx_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:sick:ftmg-esr50sxx_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:sick:ftmg-esr40sxx_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:sick:ftmg-esd15axx_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Sick Ftmg-esd20axx Firmware

CVE-2023-23447 — High (CVSS 7.5): Uncontrolled Resource Consumption in SICK FTMg AIR FLOW SENSOR with Partnumbers 1100214, 1100215, 1100216, 1120114,…
CVE-2023-23446 — High (CVSS 7.5): Improper Access Control in SICK FTMg AIR FLOW SENSOR with Partnumbers 1100214, 1100215, 1100216, 1120114, 1120116,…
CVE-2023-23445 — High (CVSS 7.5): Improper Access Control in SICK FTMg AIR FLOW SENSOR with Partnumbers 1100214, 1100215, 1100216, 1120114, 1120116,…
CVE-2023-23450 — Medium (CVSS 6.2): Use of Password Hash Instead of Password for Authentication in SICK FTMg AIR FLOW SENSOR with Partnumbers 1100214,…
CVE-2023-31409 — Medium (CVSS 5.3): Uncontrolled Resource Consumption in SICK FTMg AIR FLOW SENSOR with Partnumbers 1100214, 1100215, 1100216, 1120114,…
CVE-2023-31408 — Medium (CVSS 5.3): Cleartext Storage of Sensitive Information in SICK FTMg AIR FLOW SENSOR with Partnumbers 1100214, 1100215, 1100216,…

All CVEs affecting Sick Ftmg-esd20axx Firmware →

Other CWE-203 (Observable Discrepancy) vulnerabilities

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CVE-2024-25714 — Critical (CVSS 9.8): In Rhonabwy through 1.1.13, HMAC signature verification uses a strcmp function that is vulnerable to side-channel…
CVE-2024-25191 — Critical (CVSS 9.8): php-jwt 1.0.0 uses strcmp (which is not constant time) to verify authentication, which makes it easier to bypass…
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