CVE-2023-23953: Advanced Secure Gateway and Content Analysis, prior to 7.3.13.1 / 3.1.6.0, may be susceptible to an Elevation

Q: How do I fix CVE-2023-23953?

advanced secure gateway: upgrade to 7.3.13.1; content analysis: upgrade to 3.1.6.0. Exact commands for each OS are on this page.

Q: Is CVE-2023-23953 being exploited?

CVE-2023-23953 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2023-23953 affect?

CVE-2023-23953 affects advanced secure gateway, content analysis. Severity is high (CVSS 7.8). Advanced Secure Gateway and Content Analysis, prior to 7.3.13.1 / 3.1.6.0, may be susceptible to an Elevation of Privilege vulnerability.

Routine

HIGH 7.8UPGRADEUPGRADE

CVE-2023-23953 is a high-severity flaw (CVSS 7.8) affecting advanced secure gateway, content analysis. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Advanced Secure Gateway and Content Analysis, prior to 7.3.13.1 / 3.1.6.0, may be susceptible to an Elevation of Privilege vulnerability.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 91%)
CISA exploited list	No
Published	2023-06-01
Last modified	2026-06-17

Publisher (CNA): Symantec Corporation · Vendor: broadcom

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-06-01 01:15 UTCPublished CVE record published
2026-06-17 05:38 UTCUpdated Record last modified

broadcom advanced secure gateway UPGRADE

Affected: < 7.3.13.1

Fixed in: 7.3.13.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy advanced-secure-gateway || rpm -q advanced-secure-gateway || advanced-secure-gateway --version

2. UPGRADE to 7.3.13.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade advanced-secure-gateway

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade advanced-secure-gateway

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

broadcom content analysis UPGRADE

Affected: < 3.1.6.0

Fixed in: 3.1.6.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy content-analysis || rpm -q content-analysis || content-analysis --version

2. UPGRADE to 3.1.6.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade content-analysis

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade content-analysis

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-23953?

advanced secure gateway: upgrade to 7.3.13.1; content analysis: upgrade to 3.1.6.0. Exact commands for each OS are on this page.

Is CVE-2023-23953 being exploited?

CVE-2023-23953 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-23953 affect?

CVE-2023-23953 affects advanced secure gateway, content analysis. Severity is high (CVSS 7.8). Advanced Secure Gateway and Content Analysis, prior to 7.3.13.1 / 3.1.6.0, may be susceptible to an Elevation of Privilege vulnerability.

How urgent is CVE-2023-23953?

Priority 29/100. High severity

Related CVEs

CVE-2023-23955 HIGH 8.1 UPGRADE UPGRADE Advanced Secure Gateway and Content Analysis, prior to 7.3.13.1 / 3.1.6.0, may be susceptible to a Server-Side
CVE-2023-23954 MEDIUM 5.4 UPGRADE UPGRADE Advanced Secure Gateway and Content Analysis, prior to 7.3.13.1 / 3.1.6.0, may be susceptible to a Stored Cros
CVE-2023-23952 CRITICAL 9.8 UPGRADE UPGRADE Advanced Secure Gateway and Content Analysis, prior to 7.3.13.1 / 3.1.6.0, may be susceptible to a Command Inj
CVE-2021-46825 CRITICAL 9.1 DOWNGRADE DOWNGRADE Symantec Advanced Secure Gateway (ASG) and ProxySG are susceptible to an HTTP desync vulnerability
CVE-2019-18375 MEDIUM 6.5 UPGRADE UPGRADE The ASG and ProxySG management consoles are susceptible to a session hijacking vulnerability

References

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