VulertSecurity VulertSecurity

Vulnerability Database · Debian · Package report

php-phpseclib3: vulnerability history, versions and safety

php-phpseclib3 is a package in the Debian ecosystem. Vulert records 7 vulnerabilities for it across 38 releases, from Mar 2023 to Sep 2026. Each vulnerability names the versions it affects, the fixed version to move to, and a workaround where no fix has been published.

i
7 vulnerabilities recorded U7
i
1 with no fix published

No patched version yet — these are the ones to plan around.

See the unfixed vulnerabilities →
i
2 in the last 12 months

Most recent disclosure 01 Sep 2026.

See the disclosure history →
i
0 malicious-package vulnerabilities

No published version shipped hostile code.

See all php-phpseclib3 vulnerabilities

Vulert verdict on php-phpseclib3 i

Updated on 23 Oct 2026

Careful: one of the 7 vulnerabilities Vulert records for this package has no fix yet. Plan around that one, or apply its workaround. The rest have a fixed version to move to.

Long-term outlook: usable, but needs attention 7 vulnerabilities on record across 3 years, 2 in the last year.

What to do: Plan around the 1 vulnerability with no published fix: each lists the affected range and any workaround that reduces exposure. No fix yet: Vulert alerts you the moment one is published. Monitor it with Vulert →

  • Vulnerabilities on record 7 over 3 years · 2 in the last year i
  • Latest disclosure 01 Sep 2026 i
  • Highest CVSS 7.5 i
  • With no published fix 1 i

Concerned about your application's security?

Vulert continues monitoring your dependencies and alerts you when new vulnerabilities are disclosed. No installation and no source-code access required.

01 Versions

Which versions are affected

Every version Vulert holds for php-phpseclib3, newest first, with the vulnerabilities that name it. A version with a count of zero has no recorded vulnerabilities; open a version to see the vulnerabilities it is exposed to.

Newest 38 of 38 versions on record. Severity counts are the vulnerabilities recorded against that exact release.

02 Disclosure history

How often vulnerabilities are recorded

  • 2023 4
  • 2024 1
  • 2026 2

Counted by the year Vulert recorded each vulnerability — the same date the table below shows as disclosed. 2 of the 7 were recorded in the last 12 months.

03 Vulnerabilities

Recorded vulnerabilities for php-phpseclib3

The 5 most severe of 7 vulnerabilities recorded for this package

Search all 7 in the database →
Vulnerability Severity Fixed version ↓ Disclosed ↓
Infinite Loop Vulnerability in phpseclib 3.x - Math/PrimeField.php 7.5 high 3.0.19-1 03 Mar 2023
Denial of Service Risk in phpseclib 3: CVE-2023-49316 7.5 high 3.0.19-1+deb12u1 27 Nov 2023
Critical Timing Attack Vulnerability in phpseclib Packages: CVE-2026-84308 6.3 medium No fix published 01 Sep 2026
Security Update for php-phpseclib3 N/A unrated 3.0.19-1+deb12u2 12 Jan 2024
Infinite Loop Vulnerability in phpseclib 3.x - CVE-2023-27560 N/A unrated 3.0.19-1 03 Mar 2023

Vulnerability wrong, a fix missing, or a package we should cover? Report it and we will fix the record. Report Vulnerability Provide Feedback

Updated: 23/Oct/2026 · Vulnerabilities in our DB: 524315

Subscribe to Vulert on Telegram
Daily digest of new CVEs, critical and high severity, affected packages and fixes — plus a weekly roundup.
Join the channel →

Questions

About php-phpseclib3

Is php-phpseclib3 safe to use?

Vulert records 7 vulnerabilities for php-phpseclib3 in Debian: 0 critical, 0 high, 0 medium and 0 low, plus 7 not yet rated. 1 of them has no published fix yet, so that is the one to avoid or mitigate.

How many vulnerabilities does php-phpseclib3 have?

7 vulnerabilities are recorded for php-phpseclib3 in the Debian ecosystem: 0 critical, 0 high, 0 medium and 0 low, plus 7 not yet rated. The ledger on this page lists the same counts next to the date of the most recent disclosure.

How often are new php-phpseclib3 vulnerabilities disclosed?

2 vulnerabilities were recorded for php-phpseclib3 in the last 12 months, and the oldest entry in this database dates to 03 Mar 2023. Recency matters more than a lifetime total: it shows how actively new issues are being disclosed for the package you are considering.

Which versions of php-phpseclib3 are affected?

Each vulnerability on this page lists the affected version range and the fixed version to move to. Open the vulnerability for the version you actually run — fixes are specific to a release line, not to the package as a whole.

How do I monitor php-phpseclib3 for upcoming vulnerabilities?

Upload the manifest or SBOM for your application at vulert.com/scanner and Vulert keeps checking the php-phpseclib3 version you actually run against new disclosures, then alerts you when one affects it. There is no installation and no source-code access required.