CVE-2020-10110Public exploitNetwork attack vector

Cache metadata exposure via HTTP response headers

Published Mar 6, 2020 · Updated Aug 4, 2024

Information exposure through caching in Citrix Gateway 11.1, 12.0, and 12.1 allows remote attackers to observe cache metadata. Unauthenticated requests to a static web resource return Via and Age response headers that identify proxy caching and the cached response's age. Citrix disputes the security impact because both headers are standard cache metadata and do not disclose sensitive information.

CVSS severity5.3
Medium
EPSS probability2.66%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information exposure through caching in Citrix Gateway 11.1, 12.0, and 12.1 allows remote attackers to observe cache metadata. Unauthenticated requests to a static web resource return Via and Age response headers that identify proxy caching and the cached response's age. Citrix disputes the security impact because both headers are standard cache metadata and do not disclose sensitive information.

The record

CVE
CVE-2020-10110
Published
Mar 6, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
Unavailable
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 6, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.0NIST NVDAV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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