How severe is CVE-2021-27132?

CVE-2021-27132 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-2021-27132 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 17% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-27132?

CVE-2021-27132 affects Sercomm Agcombo Vd625 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-27132?

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-2021-27132 published?

CVE-2021-27132 was published on 2021-02-27 and last updated on 2026-07-09.

CVE-2021-27132

CVE-2021-27132 is a critical-severity vulnerability in Sercomm Agcombo Vd625 Firmware with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 17% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-74.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 17% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-74
Affected product: Sercomm Agcombo Vd625 Firmware
Published: 2021-02-27
Last modified: 2026-07-09

Description

SerComm AG Combo VD625 AGSOT_2.1.0 devices allow CRLF injection (for HTTP header injection) in the download function via the Content-Disposition header.

Frequently asked questions

What is CVE-2021-27132?: SerComm AG Combo VD625 AGSOT_2.1.0 devices allow CRLF injection (for HTTP header injection) in the download function via the Content-Disposition header.
How severe is CVE-2021-27132?: CVE-2021-27132 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-2021-27132 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 17% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-27132?: CVE-2021-27132 affects Sercomm Agcombo Vd625 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-27132?: 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-2021-27132 published?: CVE-2021-27132 was published on 2021-02-27 and last updated on 2026-07-09.

References

https://cybertuz.com/blog/post/crlf-injection-CVE-2021-27132

Affected products (1)

cpe:2.3:o:sercomm:agcombo_vd625_firmware:agsot_2.1.0:*:*:*:*:*:*:*

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