CVE-2026-9698

CRITICALNVD 9.89.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-09. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3

Also known asEUVD-2026-35366 (ENISA EUVD) · GHSA-83j7-3c78-fq8j (GitHub Security Advisories)Source: ENISA EUVD

9.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 9.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Fixed versions, as the CVE record's CNA (CPAN Security Group) states them: "Upgrade to DBI 1.648 or later."

DBI versions before 1.648 for Perl saved errors in a limited-sized buffer.

Error messages that were returned when RaiseError, PrintError or HandleError were set were written to a 200-byte buffer without a length limit.

Attackers that can influence the error text in an application can trigger a buffer overflow.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
59
EG Risk 59/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity98% × 45%
Impact severity (EG Severity): CVSS 9.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.5% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.5%
EPSS %ILE
40th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (9.8): severity, escalated by confirmed exploitation. This CVE's 9.8 is its impact severity (EG Severity), not escalated.

EG Severity
9.8 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.5% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-12). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

June 9, 2026

Last Modified

September 3, 2026

Advisory Details (11)

Auto-updated Nov 9, 2026
🔬 Proof of concept available. Patch available. Sources: redhat.
Red HatMentions a patch (unverified)

2486734 – (CVE-2026-9698) CVE-2026-9698 DBI: DBI: Buffer overflow in error handling can lead to arbitrary code execution

Affected: Red Hat Enterprise Linux 10

https://bugzilla.redhat.com/show_bug.cgi?id=2486734
Red HatMentions a patch (unverified)

CVE-2026-9698 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2026-9698
Red HatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 8.

https://access.redhat.com/errata/RHSA-2026:62667
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:53371
Red HatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 8.

https://access.redhat.com/errata/RHSA-2026:38901
Red HatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 10.

https://access.redhat.com/errata/RHSA-2026:38513
Red HatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 9.

https://access.redhat.com/errata/RHSA-2026:38512
Web page

oss-security - CVE-2026-9698: DBI versions before 1.648 for Perl saved errors in a limited-sized buffer

http://www.openwall.com/lists/oss-security/2026/06/09/9
Web page🟡 PoC Available

ChangeLog - metacpan.org

https://metacpan.org/release/HMBRAND/DBI-1.648/changes
Red HatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 6",

https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-9698.json

Patch Availability(6)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulibdbi-perl (1.634-1ubuntu0.2+esm2) @ xenial2026-11-12ubuntu
redhatperl-DBI-0:1.641-2.el8_102026-09-02redhat
redhatinsights-proxy/insights-proxy-container-rhel9:17864336562026-08-11redhat
redhatperl-DBI:1.641-8100020260624081239.69ef70f82026-07-13redhat
redhatperl-DBI-0:1.643-9.el9_8.12026-07-13redhat
redhatperl-DBI-0:1.643-26.el10_2.12026-07-13redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(5 across 5 ecosystems)
Alpine:v3.24(1)
PackageVulnerable rangeFix by version rangeDependents
perl-dbi—
  • every version up to 1.648-r0: fixed in 1.648-r0
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
libdbi-perl1.643-3
  • every version up to 1.643-3+deb11u1: fixed in 1.643-3+deb11u1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
libdbi-perl1.643-4
  • every version up to 1.643-4+deb12u1: fixed in 1.643-4+deb12u1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
libdbi-perl1.647-1
  • every version up to 1.647-1+deb13u1: fixed in 1.647-1+deb13u1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
libdbi-perl1.647-1
  • every version up to 1.648-1: fixed in 1.648-1
—

Weakness Classification(2)

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

Additional Vendor Advisories

(4)

Data Freshness Timeline

(refreshed 21× in last 7d / 94× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed its CVE.org record (CNA or CISA ADP). An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 780 rows on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 680 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-13 16:59 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  2. 2026-11-13 14:40 UTCEchelonGraph re-scored
  3. 2026-11-13 14:40 UTCVendor advisory
  4. 2026-11-13 14:40 UTCGHSA enrichmentGHSA-83j7-3c78-fq8j · GitHub severity CRITICAL · GitHub CVSS 9.8
  5. 2026-11-12 16:35 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  6. 2026-11-12 16:17 UTCVendor advisory
  7. 2026-11-12 16:17 UTCGHSA enrichmentGHSA-83j7-3c78-fq8j · GitHub severity CRITICAL · GitHub CVSS 9.8
  8. 2026-11-11 17:47 UTCEchelonGraph re-scored
  9. 2026-11-11 17:47 UTCVendor advisory
  10. 2026-11-11 17:47 UTCGHSA enrichmentGHSA-83j7-3c78-fq8j · GitHub severity CRITICAL · GitHub CVSS 9.8
  11. 2026-11-11 16:41 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  12. 2026-11-10 19:23 UTCEchelonGraph re-scored
  13. 2026-11-10 19:23 UTCVendor advisory
  14. 2026-11-10 19:23 UTCGHSA enrichmentGHSA-83j7-3c78-fq8j · GitHub severity CRITICAL · GitHub CVSS 9.8
  15. 2026-11-10 16:46 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  16. 2026-11-09 20:54 UTCEchelonGraph re-scored
  17. 2026-11-09 20:54 UTCVendor advisory
  18. 2026-11-09 20:54 UTCGHSA enrichmentGHSA-83j7-3c78-fq8j · GitHub severity CRITICAL · GitHub CVSS 9.8
  19. 2026-11-09 16:37 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  20. 2026-11-08 22:31 UTCEchelonGraph re-scored
  21. 2026-11-08 22:31 UTCVendor advisory
  22. 2026-11-08 22:31 UTCGHSA enrichmentGHSA-83j7-3c78-fq8j · GitHub severity CRITICAL · GitHub CVSS 9.8
  23. 2026-11-08 16:42 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  24. 2026-11-08 00:09 UTCEchelonGraph re-scored
  25. 2026-11-08 00:09 UTCVendor advisory
Show 75 more
  1. 2026-11-08 00:09 UTCGHSA enrichmentGHSA-83j7-3c78-fq8j · GitHub severity CRITICAL · GitHub CVSS 9.8
  2. 2026-11-07 16:40 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  3. 2026-11-07 01:44 UTCEchelonGraph re-scored
  4. 2026-11-07 01:44 UTCVendor advisory
  5. 2026-11-07 01:44 UTCGHSA enrichmentGHSA-83j7-3c78-fq8j · GitHub severity CRITICAL · GitHub CVSS 9.8
  6. 2026-11-06 22:55 UTCOSV refresh
  7. 2026-11-06 16:40 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  8. 2026-11-06 03:21 UTCEchelonGraph re-scored
  9. 2026-11-06 03:21 UTCVendor advisory
  10. 2026-11-06 03:21 UTCGHSA enrichmentGHSA-83j7-3c78-fq8j · GitHub severity CRITICAL · GitHub CVSS 9.8
  11. 2026-11-05 16:39 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  12. 2026-11-05 04:58 UTCEchelonGraph re-scored
  13. 2026-11-05 04:58 UTCVendor advisory
  14. 2026-11-05 04:58 UTCGHSA enrichmentGHSA-83j7-3c78-fq8j · GitHub severity CRITICAL · GitHub CVSS 9.8
  15. 2026-11-04 16:37 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  16. 2026-11-04 06:34 UTCEchelonGraph re-scored
  17. 2026-11-04 06:34 UTCVendor advisory
  18. 2026-11-04 06:34 UTCGHSA enrichmentGHSA-83j7-3c78-fq8j · GitHub severity CRITICAL · GitHub CVSS 9.8
  19. 2026-11-03 16:49 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  20. 2026-11-03 08:10 UTCEchelonGraph re-scored
  21. 2026-11-03 08:10 UTCVendor advisory
  22. 2026-11-03 08:10 UTCGHSA enrichmentGHSA-83j7-3c78-fq8j · GitHub severity CRITICAL · GitHub CVSS 9.8
  23. 2026-11-02 16:46 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  24. 2026-11-02 09:46 UTCEchelonGraph re-scored
  25. 2026-11-02 09:46 UTCVendor advisory
  26. 2026-11-02 09:46 UTCGHSA enrichmentGHSA-83j7-3c78-fq8j · GitHub severity CRITICAL · GitHub CVSS 9.8
  27. 2026-11-01 16:36 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  28. 2026-11-01 11:22 UTCEchelonGraph re-scored
  29. 2026-11-01 11:22 UTCVendor advisory
  30. 2026-11-01 11:22 UTCGHSA enrichmentGHSA-83j7-3c78-fq8j · GitHub severity CRITICAL · GitHub CVSS 9.8
  31. 2026-10-31 12:59 UTCEchelonGraph re-scored
  32. 2026-10-31 12:59 UTCVendor advisory
  33. 2026-10-31 12:59 UTCGHSA enrichmentGHSA-83j7-3c78-fq8j · GitHub severity CRITICAL · GitHub CVSS 9.8
  34. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  35. 2026-10-30 14:37 UTCEchelonGraph re-scored
  36. 2026-10-30 14:37 UTCVendor advisory
  37. 2026-10-30 14:37 UTCGHSA enrichmentGHSA-83j7-3c78-fq8j · GitHub severity CRITICAL · GitHub CVSS 9.8
  38. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  39. 2026-10-29 16:14 UTCVendor advisory
  40. 2026-10-29 16:14 UTCGHSA enrichmentGHSA-83j7-3c78-fq8j · GitHub severity CRITICAL · GitHub CVSS 9.8
  41. 2026-10-28 17:50 UTCEchelonGraph re-scored
  42. 2026-10-28 17:50 UTCVendor advisory
  43. 2026-10-28 17:50 UTCGHSA enrichmentGHSA-83j7-3c78-fq8j · GitHub severity CRITICAL · GitHub CVSS 9.8
  44. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  45. 2026-10-27 19:27 UTCEchelonGraph re-scored
  46. 2026-10-27 19:27 UTCVendor advisory
  47. 2026-10-27 19:27 UTCGHSA enrichmentGHSA-83j7-3c78-fq8j · GitHub severity CRITICAL · GitHub CVSS 9.8
  48. 2026-10-27 16:33 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  49. 2026-10-26 21:04 UTCEchelonGraph re-scored
  50. 2026-10-26 21:04 UTCVendor advisory
  51. 2026-10-26 21:03 UTCGHSA enrichmentGHSA-83j7-3c78-fq8j · GitHub severity CRITICAL · GitHub CVSS 9.8
  52. 2026-10-26 16:33 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  53. 2026-10-25 20:36 UTCEchelonGraph re-scored
  54. 2026-10-25 20:36 UTCVendor advisory
  55. 2026-10-25 20:36 UTCGHSA enrichmentGHSA-83j7-3c78-fq8j · GitHub severity CRITICAL · GitHub CVSS 9.8
  56. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  57. 2026-10-25 13:48 UTCEchelonGraph re-scored
  58. 2026-10-24 22:13 UTCEchelonGraph re-scored
  59. 2026-10-24 22:13 UTCVendor advisory
  60. 2026-10-24 22:13 UTCGHSA enrichmentGHSA-83j7-3c78-fq8j · GitHub severity CRITICAL · GitHub CVSS 9.8
  61. 2026-10-24 16:34 UTCEPSS rescoreEPSS 0.8% · 57th percentile
  62. 2026-10-23 23:44 UTCEchelonGraph re-scored
  63. 2026-10-23 23:44 UTCVendor advisory
  64. 2026-10-23 23:44 UTCGHSA enrichmentGHSA-83j7-3c78-fq8j · GitHub severity CRITICAL · GitHub CVSS 9.8
  65. 2026-10-23 16:33 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  66. 2026-10-23 01:17 UTCEchelonGraph re-scored
  67. 2026-10-23 01:17 UTCVendor advisory
  68. 2026-10-23 01:16 UTCGHSA enrichmentGHSA-83j7-3c78-fq8j · GitHub severity CRITICAL · GitHub CVSS 9.8
  69. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  70. 2026-10-22 02:23 UTCEchelonGraph re-scored
  71. 2026-10-22 02:23 UTCVendor advisory
  72. 2026-10-22 02:23 UTCGHSA enrichmentGHSA-83j7-3c78-fq8j · GitHub severity CRITICAL · GitHub CVSS 9.8
  73. 2026-10-21 16:34 UTCEPSS rescoreEPSS 0.8% · 56th percentile
  74. 2026-10-21 03:59 UTCEchelonGraph re-scored
  75. 2026-10-21 03:59 UTCVendor advisory

Frequently asked(5)

What is CVE-2026-9698?
CVE-2026-9698 is a critical-severity vulnerability; its CVE record was published on June 9, 2026. DBI versions before 1.648 for Perl saved errors in a limited-sized buffer. Error messages that were returned when RaiseError, PrintError or HandleError were set were written to a 200-byte buffer without a length limit. Attackers that can influence the error text in an application can trigger a…
When was the CVE record for CVE-2026-9698 published?
The CVE record for CVE-2026-9698 was published on June 9, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 3, 2026; the record at its source may have been updated since.
Is CVE-2026-9698 actively exploited?
CVE-2026-9698 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (40th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-9698?
CVE-2026-9698 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-9698?
A fix for CVE-2026-9698 is available: update to the fixed version the vendor names in its advisory. Fixed versions, as the CVE record's CNA (CPAN Security Group) states them: "Upgrade to DBI 1.648 or later." The vendor advisories EchelonGraph has for CVE-2026-9698 are linked in the Vendor Advisories panel on this page.

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