Security readout for executives and security teams
Plain-English summary
CVE-2017-2777 is a high-severity PDF handling flaw in Iceni Argus 6.6.05. A malicious PDF sent to a user can trigger memory corruption when opened, potentially allowing attacker-controlled code execution or application compromise. The bundle does not identify active exploitation or a confirmed fixed version.
Executive priority
Treat as a targeted document-risk issue. Prioritize teams that handle external PDFs, legal or customer documents, or automated PDF processing. Urgency is high if Argus remains in production.
Technical view
Talos describes an integer overflow in Argus ipStringCreate that leads to a heap overflow while processing a specially crafted PDF. CVSS 3.0 is 8.8: network deliverable, low complexity, no privileges, user interaction required, with high confidentiality, integrity, and availability impact.
Likely exposure
Exposure appears limited to environments using Iceni Argus 6.6.05, especially where users open externally supplied PDFs or automated workflows process untrusted PDFs with that product.
Exploitation context
The bundle supports malicious-file delivery, not drive-by exploitation. An attacker must get a crafted PDF to a target and have it opened or processed. KEV is false, and no cited source claims active exploitation.
Researcher notes
Affected version evidence is specific: Iceni Argus 6.6.05. Sources do not provide CWE mapping, exploit-in-the-wild evidence, or a fixed version in the supplied bundle. Avoid expanding scope beyond Argus without vendor confirmation.
Mitigation direction
- Identify and remove Iceni Argus 6.6.05 from exposed PDF workflows.
- Check Iceni or Talos guidance for a supported fixed release or vendor workaround.
- Block or sandbox untrusted PDFs before Argus handling.
- Restrict Argus use to trusted documents until remediation is confirmed.
- Apply endpoint controls that reduce impact from document-triggered memory corruption.
Validation and detection
- Inventory systems for Iceni Argus 6.6.05, including legacy workstations and processing servers.
- Confirm whether Argus processes inbound, customer, email, or downloaded PDFs.
- Review EDR and email telemetry for suspicious PDF-triggered crashes around Argus.
- Verify remediated systems no longer run the affected version.
- Document compensating controls where replacement or upgrade is not immediately possible.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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CVE-2017-2777 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.8 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H2.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
8.8HighVector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0271CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
