CVE-2016-1000027

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 60.4%, top 2% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 32%CVSS: 9.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Pivotal Spring Framework through 5.3.16 suffers from a potential remote code execution (RCE) issue if used for Java deserialization of untrusted data. Depending on how the library is implemented within a product, this issue may or not occur, and authentication may be required. NOTE: the vendor's position is that untrusted data is not an intended use case. The product's behavior will not be changed because some users rely on deserialization of trusted data.

CVSS v3
9.8
EG Score
9.8(medium)
EPSS
98.1%
KEV
Not listed

Published

January 2, 2020

Last Modified

November 21, 2024

Advisory Details (7)

Auto-updated Jun 21, 2026
Patch available. Sources: redhat.
redhat Patch Available

1357929 – (CVE-2016-1000027) CVE-2016-1000027 spring: HttpInvokerServiceExporter readRemoteInvocation method untrusted java deserialization

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-1000027
generic

[R2] Pivotal Spring Framework HttpInvokerServiceExporter readRemoteInvocation Method Untrusted Java Deserialization - Research Advisory | Tenable®

https://www.tenable.com/security/research/tra-2016-20
generic

Spring Framework 5.3.20 and 5.2.22 available now

https://spring.io/blog/2022/05/11/spring-framework-5-3-20-and-5-2-22-available-now
generic

CVE-2016-1000027

https://security-tracker.debian.org/tracker/CVE-2016-1000027
generic

Sonatype vulnerability CVE-2016-1000027 in Spring-web project · Issue #24434 · spring-projects/spring-framework · GitHub

https://github.com/spring-projects/spring-framework/issues/24434#issuecomment-744519525
generic

Sonatype vulnerability CVE-2016-1000027 in Spring-web project · Issue #24434 · spring-projects/spring-framework · GitHub

https://github.com/spring-projects/spring-framework/issues/24434#issuecomment-582313417
generic

Sonatype vulnerability CVE-2016-1000027 in Spring-web project · Issue #24434 · spring-projects/spring-framework · GitHub

https://github.com/spring-projects/spring-framework/issues/24434#issuecomment-579669626

Affected Packages

(1 across 1 ecosystem)
Maven(1)
PackageVulnerable rangeFixed inDependents
org.springframework:spring-web1.0 ... 5.3.9 (250 versions)6.0.0—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 33× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-11 08:23 UTCEPSS rescore
  2. 2026-07-09 19:05 UTCEPSS rescore
  3. 2026-07-09 19:05 UTCEPSS rescore
  4. 2026-07-08 15:10 UTCEPSS rescore
  5. 2026-07-07 13:42 UTCEPSS rescore
  6. 2026-07-07 13:42 UTCEPSS rescore
  7. 2026-07-05 02:26 UTCEPSS rescore
  8. 2026-07-02 12:50 UTCOSV refresh
  9. 2026-07-01 15:02 UTCEPSS rescore
  10. 2026-06-30 23:19 UTCEPSS rescore
  11. 2026-06-30 23:19 UTCEPSS rescore
  12. 2026-06-28 14:04 UTCEPSS rescore
  13. 2026-06-28 04:53 UTCEPSS rescore
  14. 2026-06-27 03:05 UTCEPSS rescore
  15. 2026-06-25 13:47 UTCEPSS rescore
  16. 2026-06-25 13:47 UTCEPSS rescore
  17. 2026-06-24 14:02 UTCEPSS rescore
  18. 2026-06-24 14:02 UTCEPSS rescore
  19. 2026-06-23 21:30 UTCEPSS rescore
  20. 2026-06-21 14:54 UTCEPSS rescore
  21. 2026-06-21 14:54 UTCEPSS rescore
  22. 2026-06-21 01:57 UTCEPSS rescore
  23. 2026-06-21 01:57 UTCEPSS rescore
  24. 2026-06-18 17:50 UTCEPSS rescore
  25. 2026-06-17 17:50 UTCEPSS rescore
Show 28 more
  1. 2026-06-17 17:49 UTCEPSS rescore
  2. 2026-06-16 17:50 UTCEPSS rescore
  3. 2026-06-16 17:50 UTCEPSS rescore
  4. 2026-06-15 17:45 UTCEPSS rescore
  5. 2026-06-14 23:14 UTCEPSS rescore
  6. 2026-06-14 11:43 UTCOSV refresh
  7. 2026-06-12 23:09 UTCEPSS rescore
  8. 2026-06-12 23:09 UTCEPSS rescore
  9. 2026-06-11 13:57 UTCEPSS rescore
  10. 2026-06-11 13:57 UTCEPSS rescore
  11. 2026-06-10 22:15 UTCEPSS rescore
  12. 2026-06-10 13:18 UTCEPSS rescore
  13. 2026-06-08 14:14 UTCEPSS rescore
  14. 2026-06-06 13:45 UTCEPSS rescore
  15. 2026-06-05 22:44 UTCEPSS rescore
  16. 2026-06-02 20:10 UTCEPSS rescore
  17. 2026-06-01 13:49 UTCEPSS rescore
  18. 2026-06-01 13:49 UTCEPSS rescore
  19. 2026-05-31 22:28 UTCEPSS rescore
  20. 2026-05-31 22:28 UTCEPSS rescore
  21. 2026-05-31 00:14 UTCEPSS rescore
  22. 2026-05-29 13:41 UTCEPSS rescore
  23. 2026-05-28 13:42 UTCEPSS rescore
  24. 2026-05-28 13:42 UTCEPSS rescore
  25. 2026-05-27 13:38 UTCEPSS rescore
  26. 2026-05-27 13:38 UTCEPSS rescore
  27. 2026-05-27 09:41 UTCEG score recompute
  28. 2026-05-24 16:43 UTCEPSS rescore

Publicly available exploits

(2 references)

Working exploit code is in the public domain (2 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCtina94happy/Spring-Web-5xx-Mitigated-version
    First seen Nov 20, 2023

    Mitigated version for CVE-2016-1000027 spring web.

    Open source ↗
  • GitHub PoCartem-smotrakov/cve-2016-1000027-poc
    First seen Feb 1, 2021

    PoC for CVE-2016-1000027

    Open source ↗

Frequently asked(5)

What is CVE-2016-1000027?
CVE-2016-1000027 is a critical vulnerability published on January 2, 2020. Pivotal Spring Framework through 5.3.16 suffers from a potential remote code execution (RCE) issue if used for Java deserialization of untrusted data. Depending on how the library is implemented within a product, this issue may or not occur, and authentication may be required. NOTE: the vendor's…
When was CVE-2016-1000027 disclosed?
CVE-2016-1000027 was first published in the National Vulnerability Database on January 2, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2016-1000027 actively exploited?
CVE-2016-1000027 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 98.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2016-1000027?
CVE-2016-1000027 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2016-1000027?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-1000027, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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